
The Russian, 28, whacked his racquet into the net five times as his frustration boiled over during his opening victory against Thai wildcard Kasidit Samrej on Tuesday.
Medvedev incurred a point penalty during his five-sets defeat in the second round by American Learner Tien late on Thursday after throwing his equipment toward the sideline. He then failed to attend the post-match news conference.
The two incidents prompted the Grand Slam’s organisers to fine Medvedev a total of US$76,000. Players reaching the second round collect around US$123,000.
Medvedev, the 2021 US Open champion, has earned more than US$45 million in prize money during his career.