What You Need To Know About McGregor vs Mayweather |superfight

Floyd Mayweather says only a showdown with UFC superstar Conor McGregor could tempt him back into the boxing ring.

Mayweather signed off his professional career with a points win over Andre Berto in September 2015 to take his record to a perfect 49-0.

But the former five-weight world champion, who turns 40 next month, has in recent months been linked with a so-called 'super fight' in a crossover encounter against McGregor.