Roger Federer extended his flawless winning streak at Wimbledon to 26 consecutive sets as the defending champion crushed Lukas Lacko, while Serena Williams powered to her 16th successive win in Wednesday's second round action. While Federer and Serena strolled, Caroline Wozniacki suffered fresh Wimbledon woe as the world number two suffered a shock 6-4, 1-6, 7-5 defeat against Ekaterina Makarova. Federer delivered a Centre Court masterclass lasting 89 minutes as the Swiss star hit 48 winners and 16 aces in his 6-4, 6-4, 6-1 victory. The 36-year-old is now on his joint second longest streak of sets won at Wimbledon -- his best was 34 between the third round in 2005 to the 2006 final. Next up for Federer is a third round tie against German world number 64 Jan-Lennard Struff who came back from two sets down to defeat 39-year-old Ivo Karlovic 13-11 in the final set. In his 20th Wimbledon appearance, top seed Federer, a 20-time major winner, is bidding to become only the second player to claim nine singles titles at the All England Club after Martina Navratilova.

On the evidence of his ruthless demolition of Slovakian world number 73 Lacko, it will take something special to stop Federer making more Wimbledon history. "I played very well. I felt good out there, less nerves than in the first round," Federer said. "I'm happy how I am hitting the ball, good concentration on my service games and able to mix it up with some slices. "Of course, you sometimes play the percentages, but if you do that too much it becomes boring, so I like to mix it up." Federer wasn't the only former champion in peak form on Centre Court as seven-time winner Serena routed Bulgarian qualifier Viktoriya Tomova 6-1, 6-4. Williams brushed aside Tomova in just 66 minutes with 24 winners and four aces to extend her streak of consecutive match wins at the All England Club. "It was better than the first round. I'm happy I'm going in the right direction," Serena said. "I'm getting there. I expect to get there, not only for Wimbledon but for the tournaments in the future."