Federer feeling confident ahead of final four clash

Roger Federer revealed that he is brimming with confidence as he looks ahead to the semi-finals of the 2017 Wimbledon Championship.

The Swiss Maestro has been in superb form at the All England Club, cruising through the first five matches without dropping a set.

Federer believes the key ingredient to his latest run is simple: Confidence. 

"I'm rested. I'm fresh. I'm confident, too. Then great things do happen. Confidence is a huge thing," quipped the veteran in his press conference.

"Last year I had a hard, hard time practising through the clay-court season. The grass-court season was difficult because of the back issues I had and the knee issues.

"This year I'm just a normal tennis player again where I can focus on tactics. I think that's the difference. I'm playing very well."

Federer will face old rival Tomas Berdych in the semi-finals, an opponent he has had the measure of in the recent past. While the former world number one leads their head-to-head 18-6 and is on a seven-win streak against the Czech, he cannot afford to be complacent.

Berdych dished up a serving masterclass in his fourth round clash against Dominic Thiem, firing 15 aces and winning 83% of points on his first serve. Berdych may also draw strength from his 2010 meeting with Federer at Wimbledon, where he beat him in four sets.

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