In tennis, and there's been a riveting throwdown between Australian star Nick Kyrgios and Greek Stefanos Tsitsipas with their talk getting pretty feisty on and off the court.
Both players were warned of code violations by the umpire. At one point, Kyrgios called for his opponent to be defaulted after the Greek player hit the ball into the crowd, narrowly missing a spectator when Tsitsipas lost the second set.
Although Kyrgios lost the first set, he hit back in style to win overall, meaning Tsitsipas is out of the competition.
Clearly no love lost between them.
London tennis journalist Simon Cambers spoke to Susie Ferguson.