Knowledge is power and Roger Federer aims to apply it in his quest for his 18th Grand Slam championship.

The Wimbledon final pits reigning champion Novak Djokovic against seven-time champion Federer in a rematch of the 2014 final, which Djokovic won in five sets.

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Contesting his 10th Wimbledon final, Federer carries a 20-19 edge into this 40th meeting with Djokovic. They have split their last four matches with Djokovic prevailing in the Indian Wells' final in March and in the Rome title match in May.

Federer says he knows the tactics to topple the world No. 1, but concedes executing that game plan is the challenge.

"Novak's been the best player for a few years now," Federer told the BBC after beating Andy Murray, 7-5, 7-5, 6-4, in the second semifinal. "He's made it extremely difficult for guys to win big tournaments. I felt that here last year. I felt it at Indian Wells. I got him a couple of times as well in Shanghai and Dubai.

"So I know how I can beat him but this is a different occasion. We've both been there before so I think were both looking forward to it. I really hope I can get this one on Sunday."

Federer, who served 76 percent, rapped 20 aces and did not drop serve against Murray, knows success starts with his serve. The Swiss master has dropped serve just once in the tournament.

"I think my serve [is the key]. I've been serving very well throughout the entire tournament," Federer said. "I'm very, very pleased to have done that. I kept the pressure up, I went for my shots. I was able to mix it up the way I ususally do it and I kept pushing forward, stay focused and it all worked out very well."

Asked if his current level of play is good enough to capture a record eighth Wimbledon crown, Federer said time will tell.

"We'll find out. I'm not sure," Federer told the BBC.

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