Stan Szeto-USA TODAY Sports

The final play of the first half Monday night saw Nick Bosa take Baker Mayfield down, then troll the quarterback with a move he’d recognize.

Mayfield, who is legendary for waiving the Sooners flag at midfield against Ohio State, had that thrown back in his face as Bosa waived an imaginary flag, then planted it in celebration.

The 49ers have dominated Mayfield and the Browns in the first half and lead 21-3. Bosa has been in Mayfield’s face all game and has four quarterback hits to go along with a sack, and a fumble recovery.