Conor McGregor reiterated calls for a rematch with Floyd Mayweather Jr. recently. And while most believe that the Flamboyant One is likely to brush aside that call, other boxers are more than willing to step up in his place. One of them is Keith Thurman, the same guy who is set to face Manny Pacquiao on July 20 at the MGM Grand Garden in Las Vegas.

McGregor recently told Tony Robbins that he wants another crack at Mayweather, TMZ reported. The Irishman feels he learned a lot in the first encounter, and now he wants another crack to show improvement when it comes to boxing. Mayweather has yet to respond to it and may never will. He is busy with his business ventures, enjoying his retirement and only opening doors of entering the ring if it involves big money - cherry picking mixed martial artist who apparently is not well-versed in boxing.

As for McGregor and assuming he is serious about boxing again, Thurman is ready to take him on. Hearing about the former UFC champion's desire to return to the boxing ring, the 29-year-old is willing to give in to his request.

"You know you make more money in the boxing ring anyway. Box me, Conor!" said Thurman in a report from TMZ Sports.

For his part, Thurman best focus on Pacquiao than entertaining another fantasy fight with McGregor. Pundits have taken shots at his last fight against Josesito Lopez, something he won although most feels was far from impressive. Probably aware that a potential fight with McGregor could earn him a big payday, Thurman believes that the Notorious still lacks the skills to survive against a top flight boxer.

"[In boxing], the advantage is do you have skills with the left? Do you have skills with the right? Do you have footwork? And, one thing [Conor] doesn't have is conditioning! He does not have conditioning. He is not ready for these championship fights."

Speaking of conditioning, this is one thing that critics are eager to see from Thurman for his upcoming clash with Pacquiao. Seeing how the Pac-Man has proven he still has the speed and power against past opponents, Thurman will have to be better prepared this time if he wants to keep his undefeated record.

Comparing Thurman to Mayweather, there is no denying that the potential revenue generated will not be as much. But then again, One Time may want to show McGregor once and for all that learning the ropes of boxing is something that needs years of investment and that challenging seasoned fighters could be a death wish.