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 Internazionali BNL d’Italia.

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.

Karolina Pliskova unleashes rage upon umpire's chair: https://t.co/E8UFmRBU4Y pic.twitter.com/Tb1qioZ3dE

— Deadspin (@Deadspin) May 16, 2018

Sakkari visibly winced as Pliskova vented her fury, taking several steps backwards before the Czech had stormed off, before shaking the umpire’s hand.

World No.6 Pliskova had several run-ins with umpire Mrozinska during the stormy match and now faces a heavy fine from the WTA.

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”.

Things were a lot more straightforward for world No.1 Simona Halep, who won 12 straight games against exciting young Japanese Naomi Osaka in a 6-1 6-0 victory that lasted just 59 minutes.

US Open champion Sloane Stephens held off a comeback from Estonian qualifier Kaia Kanepi in a 6-0 5-7 6-4 victory; seventh-seeded Caroline Garcia defeated Timea Babos 6-3 6-4 and 14th-seeded Daria Kasatkina eliminated American qualifier Danielle Collins 6-2 6-3.

Pliskova raises her hand to shake the umpire's hand, thinks better of it, and instead smashes open the umpire's chair with four blows of her racquet.

Someone's getting fined af. pic.twitter.com/QNCuusg3TX

— Hannah Wilks (@newballsplease) May 16, 2018