Guess Baker Mayfield's over that Rose Bowl loss ... because the Oklahoma QB hit up Staples Center to watch the Clippers on Tuesday night with absolutely no worries.
Mayfield arrived to the game with a hot lady friend -- and the two sat pretty close to the court to watch former OU stud Blake Griffin ball out.
The 22-year-old future NFL Draft pick was still rocking his Rose Bowl hat -- so, can't be too upset, right?
For the record, the Clips beat the Grizzlies ... with Blake droppin' 21 points.
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