San Francisco 49ers star George Kittle reset the tight end market when he agreed to a five-year, $75 million extension, according to NFL Network's Ian Rapoport and Michael Silver.

NBC Sports Bay Area's Matt Maiocco provided more specifics:

At $15 million, Kittle's average salary smashes the previous high-water mark for tight ends. Hunter Henry was in the top spot after he signed his $10.6 million franchise tender with the Los Angeles Chargers, while Austin Hooper's contract with the Cleveland Browns will net him $10.5 million annually, per Spotrac.

Highest-Paid Tight Ends

• 1. George Kittle ($15,000,000)
• 2. Hunter Henry ($10,607,000)
• 3. Austin Hooper ($10,500,000)
• 4. Travis Kelce ($9,368,400)
• T5. Rob Gronkowski ($9,000,000)
• T5. Kyle Rudolph ($9,000,000)

NFL Network's Tom Pelissero noted Kittle might not have the top salary for long, though:

Kittle was bound to get a hefty pay raise after he posted 216 receptions for 2,945 yards and 12 touchdowns through his first three seasons. He was a Pro Bowler in 2018 and 2019 and earned his first All-Pro nod last year.

His contract reflects how tight ends still have some way to go to be compensated like elite wide receivers. Julio Jones ($22 million) leads all wideouts in average salary, and Kittle's number would only be good enough for 12th behind Cleveland Browns star Jarvis Landry ($15.1 million).

Highest-Paid Wide Receivers

• 1. Julio Jones ($22,000,000)
• 2. Amari Cooper ($20,000,000)
• 3. Michael Thomas ($19,250,000)
• 4. A.J. Green ($18,171,000)
• T5. Tyreek Hill ($18,000,000)
• T5. Odell Beckham Jr. ($18,000,000)
• 7. Mike Evans ($16,500,000)
• T8. DeAndre Hopkins ($16,200,000)
• T8. Brandin Cooks ($16,200,000)
• 10. Adam Thielen ($16,050,000)
• 11. Jarvis Landry ($15,100,000)
• *George Kittle ($15,000,000)

Here's where Kittle sits relative to the highest earners at each position.

Highest Average Salary

• QB: Patrick Mahomes ($45,000,000)
• RB: Christian McCaffrey ($16,015,875)
• WR: Julio Jones ($22,000,000)
• TE: George Kittle ($15,000,000)
• OT: Laremy Tunsil ($22,000,000)
• OG: Brandon Scherff ($15,030,000)
• C: Rodney Hudson ($11,250,000)
• DE: Joey Bosa ($27,000,000)
• DT: Aaron Donald ($22,500,000)
• OLB: Khalil Mack ($23,500,000)
• ILB: Bobby Wagner ($18,000,000)
• CB: Darius Slay $16,683,333)
• S: Eddie Jackson ($14,600,000)

Both Kelce and Ertz are signed through 2021, so massive extensions may not be coming this offseason.

Ertz might struggle to eclipse Kittle's record-breaking deal since he's three years older at 29 and has had just one 1,000-yard receiving season.

Kelce, on the other hand, should have a good chance. Although he's four years older than Kittle, his 507 receptions are the third-most ever for a tight end over his first seven seasons, per Pro Football Reference. He's also first in receiving yards (6,465) despite the fact that he played in only one game as a rookie.