British number three Dan Evans announces he tested positive for cocaine in a drugs test taken in April, saying: "I made a mistake."
Former Queen's champions Grigor Dimitrov and Marin Cilic reach this year's Aegon Championships semi-finals.
Roger Federer beats Florian Mayer 6-3 6-4 to reach in the semi-finals of the Gerry Weber Open in Halle, Germany.
Petra Kvitova reaches the semi-finals of the Aegon Classic as she continues her return from a career-threatening hand injury.
Audio & Video
BBC's tennis team of Sue Barker, Peter Fleming and John Lloyd discuss British number three Dan Evans' failed drugs test.
Analysis and opinion from the BBC's tennis correspondent.
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