Stefanos Tsitsipas became the latest player to lose his cool at the Shanghai Masters, accusing a chair umpire of having "no clue about tennis" and insisting on needing to "talk to a supervisor" during a lengthy rant.

Stefanos Tsitsipas had an angry outburst at a chair umpire during his Shanghai Masters match vs Daniil Medvedev, on Wednesday.

A day after Frances Tiafoe exploded at the Shanghai Masters, Greek tennis star Stefanos Tsitsipas delivered his own outburst.