Floyd Mayweather announced on Instagram he was ending his retirement in 2020. The post offered little else beside a picture of him shirtless in boxing gear and the caption, "Coming out of retirement in 2020."

About an hour before, Mayweather teased, also on Instagram, that his comeback would involve the UFC. The image showed him grinning and sitting courtside next to Dana White; the caption announced they were bringing the "world another spectacular event."

The 42-year-old said he was done with boxing after beating Andre Berto in 2015. He ended his retirement once, in 2017, to defeat Conor McGregor by TKO. The victory pushed him to 50-0, surpassing heavyweight great Rocky Marciano for longer unbeaten streak.

Mayweather spoke about his retirement from the "brutal sport" during a recent interview with Reuters, suggesting he was done for good.

"I've got calls to get back into the ring, but my health is my wealth," he said. "Boxing is a very, very brutal sport. In the last few years a lot of fighters have died inside that squared circle. You have got to know when to hang it up. I had a great career."

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