Rome - Former world No 1 Karolina Pliskova smashed the umpire's chair in frustration after she lost to Greece's Maria Sakkari in the second round of the WTA Tour's Italian Open on Wednesday.
In the third set with the sixth seeded Czech serving 6-3, 3-6, 5-5 (40/40) she had an overhead shot incorrectly ruled out and both the line judge and the umpire said they could not find the mark.
After vehemently arguing with the umpire to no avail Pliskova was furious when 42nd-ranked Sakkari was given the advantage and break point at a crucial stage of the match.
The Czech went on to lose that game and the match 3-6, 6-3, 7-5 in two hours 21 minutes.
She furiously repeatedly struck the umpire's chair with her racket.
For Sakkari it was the first top five win of her career and she will face 11th seed Angelique Kerber of Germany next.