Daniil Medvedev defeated Gael Monfils in his first match of the Monte Carlo Masters, i.e., in the round of 32. The Russian won the match 6-2, 6-4, and gave the Frenchman no chance at all to make a comeback. However, once the match was over, he was upset about losing a particular game in the second set over a wrong decision.
In fact, during the match, the Russian got into a pretty heated altercation with the match umpire due to this. Daniil Medvedev won the first set pretty convincingly and also got an early lead in the second set.