A screen grab of Karolina Pliskova hitting the umpire's chair in Rome yesterday

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 Italian Open yesterday. In the third set with the sixth seeded Czech serving 6-3, 3-6, 5-5 (30/30) she had an overhead shot incorrectly ruled out and both the line judge and the umpire said they could not find the mark.