The boxing world wants to see Floyd Mayweather Jr. return from his two-year retirement to oppose Ultimate Fighting Championship star Conor McGregor in the ring. Mayweather wants the same thing, too, with one accommodation. "If me and Conor McGregor do happen to make the fight happen, and I think that the fight will happen, I would love for this young kid to be on the undercard," Mayweather said Saturday night in London, where he had just watched Baltimore's Gervonta Davis, the aforementioned "young kid," make Mayweather Promotions' bet on his future look good again. Davis defended his International Boxing Federation junior-lightweight title with a third-round technical knockout of previously unbeaten Liam Walsh at Copper Box Arena. With the win, Davis, 22, moved to 19-0 in his career, with 18 knockouts. "I'm proud of 'Tank.' I want him to keep up the good work and keep working hard and he'll be back in the ring in a few months," Mayweather said, according to CBS Sports. "We just want to take one fight at a time. There's no rush." Mayweather, who last fought in September 2015, has been rumored to be in talks to fight McGregor since April 2016. "Just having him in my corner, I feel like I have a chance," Davis said recently of Mayweather. "I have that chance. I have one of the best in the sport backing me, so it means a lot."