
Frances Tiafoe beat Grigor Dimitrov in the U.S. Open men's singles quarterfinals on Tuesday night. After splitting the first two sets, Tiafoe took the lead in the third and Dimitrov retired during the fourth, sending Tiafoe to the semifinals.
The most tense moment of the match came during the second set when Tiafoe wanted a bug removed from the playing surface. That responsibility fell to one of the ballboys who immediately entered into a delicate dance with the grasshopper or whatever it was. The point is, the bug was quick and the ballboy had trouble corralling it.