After his challenging opener at the TEB BNP Paribas Istanbul Open, Bulgarian star Grigor Dimitrov was confident that he would perform much better in his next games.

2nd seed Dimitrov, who defeated 7-5, 4-6, 7-5 qualifier Adrian Ungur to reach quarter finals, stressed that he did not perform as good as he wanted in his second round encounter. Nevertheless, world no. 29 Grisho was happy to advance last eight.

Last year’s semi finalist Dimitrov stated that his opponent was better than he expected and added: “I played a bad match today, but full credit to Ungur. He was pretty effective on his backhands. That’s a little bit weird, but I play my best tennis when I’m under pressure, as I was 15/30 down at 4-5 in third. In the end, I’m glad with the win, but surely I’ll get better and better in the next matches.”