Floyd Mayweather has shocked the combat sports world after announcing he would come out of retirement next year. The 42-year-old American (professional boxing record 50-0) posted a picture on his Instagram wearing wraps with the caption, “Coming out of retirement in 2020”. He did not elaborate on which sport it would be. The post was retweeted by UFC president Dana White, who was spotted sitting with “Money” court-side at a Los Angeles Clippers vs Boston Celtics basketball game on Wednesday, further fuelling rumours of a move into mixed martial arts. The pair have openly stated that they are working together on another event. UFC’s White has also given exposure to UFC-tied Zuffa Boxing in recent weeks but has not confirmed when it will be launched. View this post on Instagram Coming out of retirement in 2020 A post shared by Floyd Mayweather (@floydmayweather) on Nov 21, 2019 at 7:54pm PST Mayweather previously told Reuters he was finished with the boxing ring and wanted to focus on other projects. The 1996 Olympic medallist previously announced retirements in 2007 and 2015 but returned soon afterwards. “I’ve got calls to get back into the ring, but my health is my wealth ... Boxing is a very, very brutal sport. In the last few years a lot of fighters have died inside the squared circle,” said Mayweather, whose last professional fight was a successful boxing bout against MMA star Conor McGregor in a round 10 stoppage in 2017. View this post on Instagram @danawhite and I working together again to bring the world another spectacular event in 2020. #boxing #UFC #mma #mayweatherpromotions A post shared by Floyd Mayweather (@floydmayweather) on Nov 21, 2019 at 7:24pm PST Mayweather also beat Japanese kickboxing star Tenshin Nasukawa in a sponsored exhibition boxing bout in January. “Eventually, I will move on to build my brand in MMA, but for right now I’m in boxing, and boxing will always be at the top as long as I’m involved,” he added.