Floyd Mayweather could be open to fighting Manny Pacquiao again if boxing fans want a rematch, according to Showtime Sports executive Stephen Espinoza. 

Pacquiao called time on his boxing career after an impressive unanimous-decision victory over Timothy Bradley on Saturday, and Mayweather has been retired since last September, but Espinoza insisted there is a possibility of the pair fighting again, per RingTV (via Yahoo Sports' Andreas Hale):

I thought Pacquiao looked good, looked as good as he has looked in the last three or four years. He was active. He showed the power. He was quick. But really in terms of a Mayweather rematch, it’s really up to the audience, to the fans and the writers. I know from talking to Floyd — if there’s demand for a particular fight — I think he will give it strong consideration. But I think this is one where we’re not going to put the cart before the horse. If people are interested in that fight then I think they’ll make their voices heard and we’ll start working on it.

Pac-Man and Money met for the first time last May when the American cruised to a fairly routine unanimous-decision victory.

It was the richest fight of all time, generating over $600 million, but for most fans it was a huge disappointment, especially considering the hype generated by nearly six years of waiting.

However, Pacquiao was suffering from a shoulder injury during the Las Vegas clash—on which he has since had surgery—and many believe he could make a better contest of it were he to meet Mayweather fully fit, per ESPN's Skip Bayless:

The fact they are both now retired is not necessarily a major issue as boxers historically find it very hard to stay away from the ring after they have called it a day.

Pacquiao, 37, is now preparing to focus on his political career in the Philippines and will run in the Senate elections next month, but he left the door open for a comeback after the Bradley fight, per ESPN.com's Dan Rafael:

Mayweather, 39, has long insisted he will not return to action having retired with a 49-0 professional record, per BBC Sport.

However, Espinoza believes Pacquiao's fine showing against Bradley may have piqued Floyd's interest and, more importantly, it may have increased the appetite in the boxing public for the pair to meet again, per RingTV (via Hale):

It’s certainly more interesting now than it was a couple weeks ago. With that performance, what Manny showed is that he still has the ability to perform at a high level and arguably at a higher level than he did last May. So whatever the reason, if people believe that the outcome or really the fight will be different this time, I think there could be some interest that is building for that fight.

Former world heavyweight champion Mike Tyson pithily summed up the thoughts of many after Mayweather and Pacquiao's long-awaited first fight:

The clamour for a rematch has been far from deafening, but Pac-Man's performance against Bradley showed he could still cause Mayweather some serious problems.

It is unlikely that is enough to raise interest levels and force the pair out of retirement and into the ring again, but based on Espinoza's latest comments, there is at least a chance.