Karolina Pliskova smashed a hole in the umpire's chair in anger after a contentious line call late in her loss to Maria Sakkari in the second round of the Italian Open.
The sixth seed was tied at 5-5 in the deciding set with her Greek opponent when her smash was called out by a line judge.
Replays showed the ball landed inside the sideline but umpire Marta Mrozinska refused to accept Pliskova's pleadings to overturn the call.
Sakkari won the game and then served out the match to win 3-6 6-3 7-5. Pliskova did not shake Mrozinska's hand and instead smashed her racket several times against the side of the umpire's chair, breaking the wood.
Pliskova's twin sister Kristyna, who is also a professional player, subsequently tweeted: "The worst i have ever seen @wta and i hope this lady Marta Mrozinska will never ever judge any match of me or Karolina again #blacklistforever"
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