MLB Star Francisco Lindor Shaves Head After Losing Bet!

To the victor go the shears!

Cleveland Indians star shortstop Francisco Lindor had made a bet with his old high school baseball team ... you guys go undefeated, I'll shave my entire head!

Well, guess what ... the Montverde Academy squad in Florida went 25-0 -- and Lindor let the guys 86 his locks!!

The 24-year-old surprised the Eagles at a school assembly and let the players take turn shaving off his blonde curls.

Hope it works out for the players in baseball, because they're TERRIBLE barbers.