Watch: Is Mayweather training for another comeback?

Floyd Mayweather insisted the Conor McGregor bout was his last, but a pair of videos posted on his social media accounts early Thursday have some wondering if he might make another comeback.

The videos show the 40-year-old Mayweather in the gym, training:

TMZ Sports spoke to two of Mayweather's bodyguards about the possibility of a rematch between him and McGregor, and while they confirmed he's retired, they didn't exactly rule it out.

"As of right now, he's retired," bodyguard "Jizzy Mack" said. "What he's telling y'all is what he's telling us, but you never know."