World No. 3 Alexander Zverev was kicked out of the ATP 500 tournament in Acapulco for "unsportsmanlike conduct" after repeatedly smashing his racket against the umpire's chair following a loss in the doubles competition.
The German later apologized for his behavior after he and Brazil's Marcelo Melo lost 6-2, 4-6 (10-6) to Britain's Lloyd Glasspool and Finland's Harri Heliovaara.
Zverev came perilously close to hitting umpire Alessandro Germani during his tantrum in Mexico.