LeBron James' Lakers took plenty of Ls in the last 12 months ... but The King's bank account certainly didn't -- because the L.A. superstar raked in a reported $121 MILLION this past year!!
Forbes just released its annual "top-10 highest-paid athletes in the world" list ... and LBJ came in second place, just behind Lionel Messi, who the outlet reports garnered around $130 million.
Forbes says LBJ's cash flow was obviously inflated by his huge Lakers contract -- but his ventures with the new 'Space Jam' flick, his "The Shop: Uninterrupted" talk show, and other endorsement deals pushed him over the $100 million mark, which is quite the feat.
According to the outlet, James is only the 10th athlete ever to earn more than $100 mil in a 12-month span ... and his $121,000,000 figure marks the most ever earned by an NBA player in a year (he previously held the record with $96.5 mil).