Wanna see Jose Canseco beat up Lindsey Lohan's dad?
Well, your wish may finally come true ... because the Bash Brother is signed on to fight Michael Lohan in a celebrity boxing match ... TMZ Sports has learned.
It's being hailed as the "Battle of the Hollywood Bad Boys" -- and celeb fight promoter Damon Feldman tells us it's all going down in September at a venue in Los Angeles.
Feldman says the fight won't be a cakewalk for Canseco ... Lohan is 3-0 in celeb boxing fights, beating up guys like reality star Jonny Fairplay.
Canseco is 5-1 in the celeb boxing world ... with victories over Danny Bonaduce and 'Real Housewives' alum Tareq Salahi.
And get this ... we're told Dean McDermott will ref the fight.