DALLAS (AP) — 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.

Reilly Opelka has called for chair umpire Greg Allensworth to be suspended by the ATP after he received a code violation at ...

Reilly Opelka called for the suspension of chair umpire Greg Allensworth after receiving a code violation for confronting a ...

Reilly Opelka criticized chair umpire Greg Allensworth following a match at the Dallas Open. Opelka was penalized for ...

The American giant immediately went to discuss the situation with Allensworth, who obviously did not revert his decision. The ...

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