For anyone who might be interested, Eurosport has an archive of short video clips dating back about a month. There are quite a few US Open clips. Not all of them are interesting, but since I am rarely able to find any tennis video files on the net, I am grateful for this little bit of video heaven. 
http://www.eurosport.com/home/pages/L0/home_multimedia_Lng0.shtml
Tip: you can skip the annoying little intro commercial by dragging the circle all the way to the end.
http://www.eurosport.com/home/pages/L0/home_multimedia_Lng0.shtml
Tip: you can skip the annoying little intro commercial by dragging the circle all the way to the end.