LiAngelo Ball Debuts Massive Back Tattoo, 'Beat The Odds'

LiAngelo Ball is catching up with Wiz Khalifa in the race to ink his whole body ... with the hooper revealing a MASSIVE new back tat on Friday.

Remember, not so long ago ... LaVar Ball was LIVID when he found out the oldest Ball bro was tatted in a hilarious scene on their "Ball In The Family" reality show.

21-year-old Gelo's only gotten closer to the needle ever since by adding 2 arm sleeves to his body art ... and now, an insanely huge back piece to complete his upper body.

Ball hit up celeb artist Herchell Carrasco -- who's done work for people from 6ix9ine to Kyle Kuzma -- for the job ... and he says it took a whopping 20 HOURS to complete.

The piece shows a grim reaper holding a royal flush with the message, "Bet On Myself, Beat The Odds."

Worth noting -- Carrasco, AKA RockRollG, is the same artist that covered Lonzo's BBB logo tat earlier last year ... as well as LaMelo's big chest piece.