The 211cm American let rip at the chair umpire over his lack of action against a fan heckling him from the stands.

Reilly Opelka faces potential discipline for his postmatch comments about a chair umpire he called the "worst ump on tour." ...

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

Spanish tennis star Carlos Alcaraz battled through against local hero Botic van de Zandschulp at the Rotterdam Open on ...