Facing Marta Kostyuk in her first action pre US Open, Bianca Andreescu encountered an unwanted hindrance which she promptly lashed out at during her DC Open Washington tie.
Andreescu was constantly cheered when she missed a serve, the guy in question was shouting out also after missed serves.
Looking up with arms aloft almost saying what is your problem, she shouted shut up and refused to play until security promptly removed him.
Having an effect on her game seemingly, she was 2-2 at the time in the final set and went 4-2 down from there.
Watch the video below.