Germany's Tommy Haas reached the quarter-finals of Wimbledon for the first time in his career with a straight-sets victory over Russia's Igor Andreev. Haas, the 24th seed, won a thrilling five-set match 
against Marin Cilic in the third round but needed only three sets today to see off the 29th seed, winning 7-6, 6-4, 6-4.
He will face the fourth-seeded Novak Djokovic in the last eight after the Serb raced to a straight-sets victory of his own against Israel's Dudi Sela. Djokovic, who lost to Haas in the final of the Halle tournament on grass earlier this month, was rarely troubled on the way to a 6-2, 6-4, 6-1 win.
The No 6 seed, Andy Roddick, won relatively comfortably against the 20th-seed Tomas Berdych of the Czech Republic 7-6 (7-4), 6-4, 6-3 and will now face Lleyton Hewitt in the quarter-finals. The Australian overcame a two-set deficit and fitness concerns to continue his impressive challenge here at Wimbledon. Hewitt appeared to be struggling with a thigh problem early on in his fourth-round meeting with Radek Stepanek and lost the first two sets. However, with Stepanek having injury problems of his own in the form of a troublesome left knee, Hewitt hit back for a 4-6, 2-6, 6-1, 6-2, 6-2 success in almost three hours.
Spain's Juan Carlos Ferrero became the first wild-card entry to reach the quarter-finals since eventual champion Goran Ivanisevic did the same in 2001 after an impressive victory over Gilles Simon. Ferrero, who knocked out 10th seed Fernando González in the previous round, disposed of Simon on Court Three, winning 7-6, 6-3, 6-2 in just under two hours.
Roger Federer secured his quarter-final place with a straight-sets win over Sweden's Robin Soderling, 6-4, 7-6, 7-6, taking both tie-breaks 7-5.
The world No2 thus needed only a single break of serve to win his fourth-round match, which was a repeat of last month's French Open final.
Federer will now play Ivo Karlovic after the big-serving Croat beat Spain's Fernando Verdasco, seeded No7 here at Wimbledon, in a four-set match 7-6 (7-5), 6-7 (4-7), 6-3, 7-6 (11-9).
