The 2012 U.S. Open is getting into crunch time, and the fourth round gets underway on Monday morning. No. 1 seed Roger Federer has a match against No. 23 Mardy Fish at Arthur Ashe Stadium that should begin around 2:30 p.m. ET. Andy Murray will also be in action on Monday, as will Serena Williams.
Television coverage of Monday's action begins at 6 a.m. ET on the Tennis Channel. CBS will pick up the coverage at 11 a.m. ET and ESPN will televise the tournament in prime time beginning at 7 p.m. ET. For a complete look at the television schedule, head over to the U.S. Open's schedule page. The tournament can also be streamed live online.