Reilly Opelka was competing against Cameron Norrie in the round of 16 tie at the Dallas ATP 500 event. The American tennis ...

In a match slated for Thursday, Brandon Nakashima (No. 43 in rankings) will face Reilly Opelka (No. 121) in the Round of 16 ...

ATP chair umpire Greg Allensworth is a referee regularly called into question by players and fans alike. In particular, he ...

Reilly Opelka's win over Cameron Norrie at the Dallas Open ended in controversial fashion and the American didn't hold back ...

Reily Opelka refused to shake the chair umpire’s hand in a stunning set of events at the Dallas Open. The American was up ...

Reilly Opelka faces potential discipline for his post-match comments about a chair umpire he called the “worst ump on tour.” ...

Controversy erupted at the Dallas Open as Reilly Opelka received a point penalty from umpire Greg Allensworth for an audible ...

DALLAS — Reilly Opelka faces potential discipline for his post-match comments about a chair umpire he called the “worst ump on tour,” the ATP said in a statement Friday. Opelka was angered ...

Reilly Opelka of the U.S. plays a forehand return to Tomas Machac of the Czech Republic during their second round match at the Australian Open tennis championship in Melbourne, Australia ...