If Lebron were to quit basketball and become a Chess Grandmaster would he be the GOAT athlete

bobdiyal 4:52 pm Thu Mar 14 EDT 0 ups @ 0.25 Removed

Lets say Lebron abruptly quit basketball after this year to become a pro chess player. If Lebron were to beat Magnus Carlsen would you consider him the greatest athlete in history over people like Muhammad Ali, Michael Jordan, Gretzky, Jim Thorpe etc.? Pretty sure Lebron would be the only GOAT in 2 sports.