"I have a lot of ideas on the court, but sometimes I can't do what I want to do," said eight-time Wimbledon winner.
After the worst Wimbledon defeat of his career, Roger Federer discusses his future.
The 22-year-old Canadian believes he has what it takes to overcome tennis' ultimate challenge.
The Belarusian, long a force on the WTA Tour, needed extra seasoning before making her Grand Slam breakthrough.
British wild card Emma Raducanu, 18, retired with health issues mid-way through her fourth-round Wimbledon match.
The Tunisian is gunning for the stars at SW19.
The Canadian had a major breakthrough on Monday at Wimbledon, but for himself and for Canada.