As the MLB season charges into mid-May, the clamor to promote top prospects grows louder.

Not every intriguing MiLB chip will get his shot in the near term. Some may have to wait until rosters expand in September or even later. But many are pounding on the door.

Here's a look at an impact prospect on each of the 30 clubs who deserves a promotion to The Show ASAP based on performance, pedigree, current developmental level and the needs of the big league squad in question.

American League East

Baltimore Orioles: 1B Ryan Mountcastle

The Baltimore Orioles are in for a protracted rebuild. Veteran first baseman Chris Davis is slashing .189/.287/.379. It's time to promote first baseman Ryan Mountcastle, who's hitting .319 with an .847 OPS at Triple-A Norfolk—and send Davis and the $92 million remaining on his contract to the bench. After they lost 115 games last season, what have the O's got to lose?

Boston Red Sox: RHP Mike Shawaryn

The Boston pitching staff ranks 18th in baseball with a 4.39 ERA. The Red Sox need arms if they hope to defend their 2018 World Series title. A major trade or signing (Craig Kimbrel and Dallas Keuchel remain unemployed) is possible. For now, Boston could promote right-hander Mike Shawaryn, who owns a 2.79 ERA and 1.07 WHIP in seven starts at Triple-A Pawtucket.

New York Yankees: RHP Garrett Whitlock

The New York Yankees system isn't loaded with high-level, MLB-ready prospects, but the team could fast-track right-hander Garrett Whitlock. An 18th-round pick in 2017, Whitlock owns a 1.99 ERA in 22.2 innings at Double-A Trenton and has held opposing hitters to a .198 average. The Yanks could slot him as a long-innings guy in a bullpen that owns a middling 4.26 ERA.

Tampa Bay Rays: INF/OF Nick Solak

After a slow start, Tampa Bay Rays prospect Nick Solak has gotten hot for Triple-A Durham. In 108 at-bats with the Bulls, he owns an .806 OPS with three home runs and nine doubles. The 24-year-old is a work in progress defensively at second base and has gotten outfield reps to increase his versatility. But his hit tool and eye-opening speed could make him a versatile asset for the small-market Rays, who are the surprise leaders in the American League East.

Toronto Blue Jays: INF/OF Cavan Biggio

The Toronto Blue Jays already called up one son of an MLB legend in Vladimir Guerrero Jr. Now, they could promote another in Cavan Biggio, the offspring of Hall of Famer Craig Biggio. The younger Biggio is hitting .327 with a .459 on-base percentage at Triple-A Buffalo and looks more than ready to face MLB pitching.

American League Central

Chicago White Sox: RHP Dylan Cease

With fireballer Michael Kopech lost to Tommy John surgery, Dylan Cease is the Chicago White Sox's top active pitching prospect. The 23-year-old has struck out 33 in 28 innings with a 3.54 ERA in six starts with Triple-A Charlotte. Like Kopech, his fastball can touch triple digits, and he augments it with a hammer curveball. Expect to see him on the South Side soon.

Cleveland Indians: 1B Bobby Bradley

The Cleveland Indians need to jolt an offense that ranks 28th with a .643 OPS. Trades are a distinct possibility, but the Tribe could also call up Bobby Bradley, who has a .947 OPS and seven home runs in 32 games with Triple-A Columbus. Carlos Santana is blocking the 22-year-old at first base, but the prospect could see time at designated hitter or possibly get reps in the outfield—though he's never played there professionally.

Detroit Tigers: RHP Casey Mize

Casey Mize sports a 0.60 ERA and .109 opponents average between High-A and Double-A. He's thrown a no-hitter at the latter level. The No. 1 overall pick by the Detroit Tigers in 2018, Mize is on the fastest of tracks. Tigers fans might have to wait until September to see their prized pitching prospect ply his trade in the Motor City, but if Mize keeps throwing like this, he could force the Tigers' hand sooner.

Kansas City Royals: RHP Jackson Kowar

The Kansas City Royals are entering what could be a prolonged rebuild. It's time to promote the kids. That should include 22-year-old right-hander Jackson Kowar, who is only at High-A but owns a 2.92 ERA with 39 strikeouts in 37 innings. He'll probably require at least one minor league promotion before he arrives in KC, but his plus fastball and changeup and emerging curveball give him the weapons to pitch in the big leagues now.

Minnesota Twins: RHP Brusdar Graterol

As they seek to stay atop the AL Central, the Minnesota Twins should consider a promotion for right-hander Brusdar Graterol. The 20-year-old has struck out 36 in 37.2 innings at Double-A and has a 1.91 ERA. His fastball sits in the high 90s and features impressive sink, which could make him a valuable weapon out of either the Twinkies' bullpen or in the back of their rotation.

American League West

Houston Astros: OF Yordan Alvarez

The Houston Astros could dangle outfielder Yordan Alvarez as trade bait at or before the July 31 trade deadline. The 21-year-old is blocked in the outfield by the trio of Michael Brantley, George Springer and Josh Reddick, and top prospect Kyle Tucker is on deck. Still, Alvarez is hitting .395 with 15 home runs and a 1.345 OPS at Triple-A Round Rock. He deserves an MLB audition. And if he rakes like that, Houston should find him a spot.

Los Angeles Angels: LHP Jose Suarez

After spending time on the injured list with a shoulder issue, Jose Suarez has posted a 0.90 ERA in two starts with the Los Angeles Angels' Triple-A affiliate. The 21-year-old southpaw needs more MiLB innings to prove he's fully healthy, but the Halos rotation ranks 30th with an ugly 5.84 ERA. As they try to build a winner around Mike Trout, the Angels can't afford to be timid with fast-rising prospects.

Oakland Athletics: INF Jorge Mateo

Jorge Mateo is hitting .329 with a .935 OPS for Triple-A Las Vegas. He's swiped 11 bases, flashing the plus speed that makes him an exciting all-around talent while continuing to display the range and defensive skills to stick at shortstop. How long can the low-budget A's keep the 23-year-old down? Given their constant need to add cost-controlled talent and desire to build on last year's 97-win finish, the answer is not very long.

Seattle Mariners: RHP Justin Dunn

Seattle Mariners starters rank 20th with a 4.47 ERA. Right-hander Justin Dunn, the 19th overall pick in 2016, has struck out 38 in 27.1 innings at Double-A. His 4.28 ERA doesn't leap off the stat sheet. The M's will probably hold off a little before they consider a promotion. But in light of his high-90s fastball, biting slider and developing changeup, the M's ought to jump-start the 23-year-old's development. 

Texas Rangers: LHP Joe Palumbo

The Texas Rangers pitching staff "boasts" a 5.35 ERA. It's all hands on deck. Enter Joe Palumbo. The 24-year-old has struck out 44 in 33 frames at Double-A while holding opposing hitters to a .210 average. Despite his slender 6'1", 168-pound frame, he can hit the high 90s with his fastball and features a plus curveball and improving changeup. Bring him up.

National League East

Atlanta Braves: INF/OF Austin Riley

With veterans Josh Donaldson and Freddie Freeman entrenched at third and first base, respectively, Atlanta Braves prospect Austin Riley may need to learn a new position to earn a promotion. He's been getting action in left field at Triple-A Gwinnett, per David O'Brien of The Athletic. Riley also has a 1.047 OPS with 14 homers in 36 games. Soon, Atlanta will need to find a spot for the 22-year-old.

Miami Marlins: OF Monte Harrison

In 31 games at Triple-A, Miami Marlins prospect Monte Harrison has an .803 OPS, 10 extra-base hits and 12 stolen bases. He has the athleticism to stick as a center fielder and the howitzer arm to play right field. The Fish are on pace for another last-place finish, meaning they have few if any reasons to delay Harrison's big league arrival.

New York Mets: LHP Anthony Kay

New York Mets pitchers rank 20th with a 4.48 ERA. Lefty Anthony Kay, the 31st overall pick in the 2016 draft, owns a 1.47 ERA with 37 strikeouts in 36.2 innings at Double-A. Through seven starts, he owns a 0.93 WHIP and has held opposing batters to a .152 average. After going all-in on a contending strategy this winter, the Mets should be prepared to promote any and all promising pieces who can aid their cause.

Philadelphia Phillies: LHP David Parkinson

The NL East-leading Philadelphia Phillies have called up a number of their top prospects, but they could soon give a look to left-hander David Parkinson. The under-the-radar 23-year-old was a 12th-round pick by the Phils in 2017 and posted a 1.45 ERA between Single-A and High-A in 2018. This year, he's struck out 21 in 25.2 innings at Triple-A and lasted six innings with no walks in his most recent outing.

Washington Nationals: RHP Wil Crowe

The Washington Nationals rank 22nd with a 4.78 ERA. They're trying to compete in a deep, competitive NL East. One option: fast-track 24-year-old Wil Crowe, who owns a 1.89 ERA in seven starts at Double-A with 35 strikeouts in 38 innings. The 2017 second-round pick has a deceptive mid-90s fastball and solid changeup to go along with an emerging slider, and he could help the Nats in the near term.

National League Central

Chicago Cubs: RHP Cory Abbott

The Chicago Cubs farm system is thin on MLB-ready impact prospects, but they could consider speeding along right-hander Cory Abbott. The 23-year-old was a second-round pick in 2017 and owns a 2.95 ERA with 42 strikeouts in 39.2 innings. His barrel-sawing cutter and off-speed offerings could make him an interesting middle reliever for a Cubbies team wrestling for supremacy in the loaded NL Central.

Cincinnati Reds: RHP Tony Santillan

The Cincinnati Reds appear to be headed for a rebuild after a misguided attempt to reload the big league roster this winter. That should mean trading veteran pieces and calling up interesting prospects such as right-hander Tony Santillan. The 6'3", 240-pound 22-year-old has fanned 40 in 35 innings with a 3.34 ERA at Double-A and could soon be a member of the Cincinnati staff.

Milwaukee Brewers: RHP Trey Supak

With the news that top prospect Keston Hiura is being called up by the Milwaukee Brewers, per Robert Murray of The Athletic, the Brew Crew's next move could be to promote righty Trey Supak. The 22-year-old sports a 2.76 ERA at Double-A Biloxi and could add depth to a Brewers pitching staff that owns a mediocre 4.37 ERA. Milwaukee should still pursue additions ahead of the trade deadline, but Supak is a name to watch.

Pittsburgh Pirates: RHP Mitch Keller

A bumpy spring torpedoed Mitch Keller's chance to make the Pittsburgh Pirates' 25-man roster, and he wasn't called up when Pirates starters Chris Archer (thumb) and Jameson Taillon (flexor strain) landed on the injured list. Sometime soon, however, the Bucs will give the 23-year-old a spot. He's struck out 42 in 34 innings at Triple-A and has the repertoire of an ace, even if the results aren't always there.

St. Louis Cardinals: RHP Junior Fernandez

In 14 appearances between High-A and Double-A, Junior Fernandez has struck out 18 in 18 innings while posting a 2.00 ERA. His fastball crackles in the high 90s, and his breaking and off-speed pitches are emerging. The Cards appear committed to making him a bullpen arm, and he could soon be an asset to a St. Louis relief corps that owns a 4.16 ERA.

National League West

Arizona Diamondbacks: RHP Jon Duplantier

After striking out 10 in 9.1 innings with a 3.86 ERA at Triple-A Reno, Jon Duplantier got the call to the Arizona Diamondbacks. He fanned 12 in 12 innings with the big club with a 2.25 ERA but was optioned back to Reno on Sunday. The 24-year-old should be back with the Snakes soon...and quite possibly for good.

Colorado Rockies: INF Brendan Rodgers

Middle infielder Brendan Rodgers is hitting .351 with a 1.060 OPS for Triple-A Albuquerque in the Colorado Rockies system. Primary Rockies second baseman Ryan McMahon is hitting .232 with a .676 OPS. It's high time the Rox call up their top prospect to help a lineup that ranks 13th in the majors with a .757 OPS despite playing half its games at Coors Field.

Los Angeles Dodgers: RHP Dustin May

The Los Angeles Dodgers bullpen ranks 16th in MLB with a 4.24 ERA. Typically an area of strength for L.A. during its recent pair of NL-pennant runs, it's a legitimate concern. The team will surely go shopping at the trade deadline, but it could also give an audition to Dustin May. The 21-year-old righty has struck out 40 in 31.2 innings at Double-A and boasts a sinking high-90s fastball and plus curve.

San Diego Padres: INF Luis Urias

Touted rookie shortstop Fernando Tatis Jr. is on the shelf with a hamstring injury. Veteran Ian Kinsler is hitting .177 in 35 games for the San Diego Padres. It's time for the Friars to recall middle infielder Luis Urias. The 21-year-old was sent back to Triple-A after opening the season 2-for-24 with San Diego, but he's hitting .354 with 11 homers and a 1.270 OPS at Triple-A El Paso and positively begging for another shot.

San Francisco Giants: RHP Shaun Anderson

The San Francisco Giants are buried in last place in the NL West and seem likely to sell any bankable assets. That includes ace left-hander Madison Bumgarner, which would leave a significant hole in San Francisco's rotation. That could create an opportunity for 24-year-old righty Shaun Anderson, who has struck out 37 in 35 innings at Triple-A Sacramento and boasts a sinking mid-90s fastball, plus slider and cutter. He's not necessarily Bumgarner's heir apparent, but he's a glimmer of hope for a franchise on the verge of a rebuild.

All statistics current as of Monday and courtesy of Baseball Reference and FanGraphs.