Sacha Baron Cohen's Booyakasha Basketball

Actor pals David Arquette and Sacha Baron Cohen play a game of pick-up basketball in Hollywood on Saturday.

According to one spywitness, Sacha was a great rebounder and David played good defense. And apparently every time Sacha scored a point, he hand gestured his signature dip snap and shouted at his opponents, “BIG UP YASELF!”

Sacha and pregnant fiancee Isla Fisher did attend a beach party BBQ last weekend at David and Courtney Cox-Arquette‘s Malibu beach home (Jennifer Aniston was also there).

BOOYAKASHA!!!