The G.O.A.T. is on a boat -- Michael Jordan is competing in a massive fishing tournament this week ... and he's doing it in style, on his "Catch 23" yacht!!!
Our solid fishing sources (yeah, we've got those) tell TMZ Sports ... His Airness took his talents to Ocean City, Maryland for the White Marlin Open where he's facing off against some of the best anglers in the WORLD!!!
FYI -- this event is huge and there's more than $6 MILLION in prize money at stake. The competitors are fishing for everything from white marlin to blue marlin along with tuna, wahoo, dolphin (usually mahi-mahi) and shark.