See your favorite stars and tennis pros celebrate the start of the U.S. Open! For coverage of the Open, tune in to Tennis Channel every day from Aug. 25 to Sept. 8
Credit: Uri Schanker/GC
Updated: Friday Sep 05, 2014 | 05:00 PM EDT
By: Kate Hogan
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A leather-clad Gwen Stefani and her 6-month-old son Apollo take in the evening action between Roger Federer and Gael Monfils on Sept. 4. No word on whether her beaming smile has anything to with Federer's win.
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