World number four Daniil Medvedev lost his temper with the "ridiculous" match officials during his straight-sets win over Gael Monfils on Wednesday at the Monte Carlo Masters.
Already one set to the good but serving to level the second set 2-2, Medvedev angrily remonstrated with umpire Mohamed Lahyani after two contentious calls during a game he eventually lost after having led 30-0.
"You guys (the officials) are getting ridiculous," shouted Medvedev at the umpire during the change of ends after he had gone on to lose his service game despite being up 40-15.