2021 U.S. Open men's quarterfinal odds, predictions: Tennis expert reveals Djokovic vs. Berrettini picks | CBS Sports Headlines 2021 U.S. Open men's quarterfinal odds, predictions: Tennis expert reveals Djokovic vs. Berrettini picks Men’s tennis handicapper Sean Calvert has locked in his Berrettini vs. Djokovic picks for the U.S. Open 2021 … Continue reading 2021 U.S. Open men's quarterfinal odds, predictions: Tennis expert reveals Djokovic vs. Berrettini picks