Myles Garrett is only a tryout away from becoming a two-sport athlete ... 'cause Ice Cube tells TMZ Sports he'd love to give the NFL star a shot at playing in the BIG3!!
The rap legend and three-on-three league co-founder got wind of what the Cleveland Browns defensive end said while watching his brother, Sean Williams, play for the Miami 305 in the BIG3 Championship last week ... when Rachel Nichols asked the 6'4", 272-pounder if he could see himself playing in the BIG3 too.