Andy Murray has slammed Alexander Zverev for his "dangerous" act after being knocked out of the doubles event at the Mexican Open.
The world number three lost his temper in Acapulco, after he and partner Marcelo Melo suffered defeat at the hands of British player Lloyd Glasspool and Harri Heliovaara of Finland in a third set tie-break.
After shaking hands with his opponents, Zverev walked to the side of the court where he proceeded to smash his tennis racket against the umpire's chair three times.