
World number six Tomas Berdych battled his way into the semi-finals of the Thailand Open on Friday, slamming 20 aces in a hard-fought victory over Lu Yen-Hsun.
The top seed was made to sweat for his 7-6 (9/7), 6-4 win against his Taiwanese rival, who has lost all 10 of his career quarter-finals.
“Credit to the opponent,” said the big-serving Czech, playing in Bangkok for the first time in half a decade.
“Sometimes I felt like I was in PlayStation. He was hitting so fast, so low and making so many winners. It was a tough match and I’m happy to go through. He played well. It proves how tough tennis is these days.”
Top seed Berdych needed a string of aces to claim his victory in just over one and three-quarter hours, coming back from a break down in the opening set.
He only lost serve once while breaking his opponent three times.