Wimbledon: Day four in pictures

Roger Federer's perfect run continued as he put up a scintillating display to thwart Serbian Dusan Lajovic  7-6 (7/0), 6-3, 6-2 in their second round clash in exactly 90 minutes. Photo: Getty
Novak Djokovic had no trouble dispatching off Adam Pavlasek in their second round match on Tuesday. The Serb, who has three Wimbledon titles, took just one hour and 34 minutes to register a 6-2, 6-2, 6-1 win against the Czech. Photo: Getty
In a huge upset, Magdalena Rybarikova defeated title favourite Karolina Pliskova in the second round on Thursday. Rybarikova battled back from a set down to win 3-6, 7-5, 6-2 on Centre Court, earning the Slovakian a last 32 clash with Ukraine's Lesia Tsurenko. Photo: Getty
Ernests Gulbis sprang a Wimbledon surprise as the World No. 589 defeated former U.S. Open champion Juan Martin Del Potro 6-4, 6-4, 7-6 (7/3) on Thursday. Gulbis will face three-time champion Novak Djokovic in the third round after scoring his best result in three years.
Seventh seed Svetlana Kuznetsova needed just over an hour to book a spot in the third round, beating fellow Russian Ekaterina Makarova 6-0, 7-5 on Court Three. Photo: Getty
Agnieszka Radwanska, the 2012 runner-up, back from one set down and saved two match points to see off Christina McHale 5-7, 7-6 (9/7), 6-3 Photo: Getty
Angelique Kerber celebrates after winning against Belgium's Kirsten Flipkens in Wimbledon. Photo: AFP
Caroline Wozniacki returns against Tsvetana Pironkova. Photo: AFP