When someone looks exceptionally good playing baseball, they are known as "league", relating them to the Major Leagues.
A word used to describe someone that looks like a MLB player while playing baseball.
Also used if you as a player see someone on the other team that looks like they are going to be good.
David: You look pretty league in your Victory baseball pants, phiten necklace and 3/4 cut sleeves.
Nick: Thanks dude.
Stephen: Yo, number 17 looks pretty league.
Sam: Where's he playing?
Stephen: He's in center right now.
Sam: oh yeah dude, he looks dirty, probably gonna play D1.
Stephen: Yeah dude, so league.