Monday's matches went mostly as expected at the 2012 U.S. Open in Flushing, N.Y., with almost all the brightest stars heading on to the quarterfinals.
Roger Federer moved on without breaking a sweat. His opponent, No. 24 Mardy Fish, decided to bow out due to health issues.
Federer should undoubtedly benefit from the extra rest before his match on Wednesday against No. 6 Tomas Berdych. Berdych was terrific on Monday, taking Nicolas Almagro apart with ease in a 7-6 (7-4), 6-4, 6-1 victory.
Great Britain's Andy Murray wasn't wasting any time on the afternoon, beating No. 15 Milos Raonic in straight sets. Murray had complete command from the outset, taking the match 6-4, 6-4, 6-2.
On the women's side, Serena Williams continued to prove why she's the overwhelming favorite to claim her fourth U.S. Open title. In a thrashing of epic measure, Williams battered Andrea Hlavackova, 6-0, 6-0.
In perhaps the biggest upset of the event, Roberta Vinci came out on top against No. 2 Agnieszka Radwanska, 6-1, 6-4. She'll now oppose fellow Italian Sara Errani in the quarters.