Michael Phelps just officially crushed the hopes of anyone hoping to see him swim in Tokyo for the 2020 Summer Olympics ... announcing his retirement from the games (again).
Phelps was doing a livestream with fans Saturday and the question of his return to the games for 2020 came up. This time, Michael was adamant ... he's not coming back.
It's not the first time Phelps has called it quits -- he "retired" in 2012 after the games in London -- but this time, it seems legit.
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