Roger Federer notches up 17th win in a row at the Swiss Indoors

Roger Federer celebrates

Roger Federer overcame a sluggish start to beat Jan-Lennard Struff and reach the quarter-final of the Swiss Indoors.

The top seed and defending champion was broken in game three, but stormed back with two breaks of his own to secure a 6-3, 7-5 win over the German.

“I was ready for Struff to come out and swing. I didn’t know how aggressive he was going to play or how much serve and volley he was going to do,” Federer, who is looking for his ninth title in Basel, said.

“But unfortunately, I didn’t have the best first two service games. But he also played well, I must say. He connected well, he came out with a plan and it worked for him.”

The win was the 37-year-old’s 17th in a row at the Swiss Indoors and he will face Gilles Simon in the last eight after the Frenchman beat Ernests Gulbis 7-6 (7-4), 7-6 (7-0).

Second seed Alexander Zverev is also safely into the quarters as he was a 6-4, 6-4 winner over Alexei Popyrin, and up next is Roberto Bautista Agut, who beat Dusan Lajovic 6-7 (6-8), 6-3, 6-3.

Fourth seed Stefanos Tsitsipas secured a 6-3, 6-1 win over Peter Gojowczyk to set up a clash with the seventh-seeded Daniil Medvedev, who beat Andreas Seppi 7-6 (7-5), 6-2.

More from Tennis365: