Kevin Anderson, the big South African who winds down from tennis by reaching for his guitar, admits he needs to be right on key from the start of his Wimbledon quarter-final against eight-time champion Roger Federer.
The odds are stacked against Anderson who will be playing in his first last-eight match at the All England Club while Federer is in his 16th.
He has also lost all four meetings against the 20-time major winner, failing to win a set off the great Swiss star.
When asked what he admired about defending champion Federer, the 32-year-old Anderson was happy to reel off an exhaustive check-list.
"His consistency, the way he plays such great tennis week in and week out," said Anderson.
"Just the way he moves, the way he conducts himself on the court is very impressive. Everything looks so easy, so fluid.
"The variety he brings to the court. The use of the slice backhand. The use of his attacking forehand. His defence. He's really got the complete package."
"The expectations he's had to deal with for over a decade, 15 years, I mean, at the top of the game, he's able to deal with it so well, which isn't easy."
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