INDIAN WELLS, Calif.—When Jannik Sinner stopped by for a chat with Prakash Amritraj following his third-round win over Denis Shapovalov Sunday at the BNP Paribas Open, the Tennis Channel host and commentator fired a warning shot to the world No. 2.
“If you lose Reilly’s serve when he’s serving, I’m going to give you a lot of grief,” said Amritraj—regarding the Italian’s impending doubles encounter with Reilly Opelka.





