The former world number had been limping during his final round when he abruptly called it quits and left the course after completing 11 holes.
He was three over par for the day and seemingly out of contention to win the tournament.
Woods was escorted from the Blue Monster course on a buggy and taken to the carpark. He immediately got into his vehicle, a black Mercedes, and promptly drove off.
The 14-time major champion sustained left-knee injury last season which caused him to withdraw from the Players Championship in May.
Before he drove away today he told a PGA official: "It's my leg, my left leg."