Wimbledon: Caroline Wozniacki stunned, Roger Federer advances
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Denmark's Caroline Wozniacki reacts after loosing her Wimbledon second round match against Russia's Ekaterina Makarova. (REUTERS)
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Ekaterina Makarova defeated Caroline Wozniacki 6-4, 1-6, 7-5. (REUTERS)
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Czech Republic's Karolina Pliskova celebrates winning the second round match against Belarus' Victoria Azarenka 6-3, 6-3. (REUTERS)
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Venus Williams (USA) defeated Alexandra Dulgheru (ROU) 4-6, 6-0, 6-1 (USA TODAY Sports)
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Serena Williams (USA) defeated Viktoriya Tomova (BUL) 6-1, 6-4. (USA TODAY Sports)
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Madison Keys (USA) in action during her match against Luksika Kumkhum (THA). The former won 6-4, 6-3. (USA TODAY Sports)
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Kiki Bertens of the Netherlands plays a return to Anna Blinkova of Russia en route to winning 6-4, 6-0. (AP)
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In men’s singles second round, Roger Federer (SUI) defeated Lukas Lacko (SVK) 6-4 6-4 6-1. (USA TODAY Sports)
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Sam Querrey of the U.S. shakes hands with Ukraine's Sergiy Stakhovsky after defeating him in their second round match. (REUTERS)
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Canada's Milos Raonic defeat Australia's John Millman 7-6(4), 7-6(4), 7-6(4). (REUTERS)
