TORONTO -- Andy Roddick followed Roger Federer out of the Rogers Cup.
The sixth-seeded Roddick was upset by 44th-ranked Marin Cilic 6-4, 4-6, 6-4 Thursday and was later joined on the sidelines by fellow seeded players Nikolay Davydenko and David Ferrer, who were also eliminated.
"His aggressiveness is what won him that match," Roddick said. "He took it to me a lot more than I took it to him."
Defending champion Novak Djokovic advanced to the quarterfinals with a 6-4, 6-4 win over Robin Soderling, and No. 2 seed Rafael Nadal moved on by beating Igor Andreev of Russia 6-2, 7-6 (1).
"I played more or less at the level which was satisfying for me," Djokovic said.
With several top players already eliminated, the road to the final has been blown wide open.
"I just pay attention to my matches," Djokovic said. "Having the role of a favorite in most matches I play, obviously I'm put in a lot of pressure. I have a lot of responsibilities and expectations, so it's not easy."
Roddick claimed he wasn't looking past Cilic at a draw that no longer featured Federer in the way.
"I don't know if I'm playing well enough right now to look ahead in the draw," he said.
Gilles Simon, who upset the top-ranked Federer on Wednesday, advanced with a 6-3, 6-4 win over Jose Acasuso. Fourth-seeded Nikolay Davydenko became the latest upset victim Thursday night when he dropped a 4-6, 6-4, 6-4 decision to Nicolas Kiefer.
Eighth-seeded Andy Murray of Britain advanced with a 6-2, 0-6, 6-4 win over ninth seed Stanislas Wawrinka of Switzerland, and No. 7 seed James Blake beat Dmitry Tursunov 4-6, 6-1, 6- Murray said he would have to be on top of his game against Djokovic.
"If I play the way I did in the first set, I have a chance of winning," he said. "If I play like I did in the second set, I'm going to get killed."
Cilic broke an indifferent-looking Roddick in the third and seventh games before taking the first set, despite a shaky 50 percent first-serve percentage.
