What to watch while staying out of the ocean ... • Olympics: Men's volleyball, USA vs. Bulgaria (8 p.m., ET); Beach volleyball, Misty May-Treanor and Kerri Walsh, U.S., vs. Liesbeth Von Breedam and Liesbeth Mouha, Belgium (9 p.m., ET). Due to a leaky roof, the men's game will be played outdoors as well. [NBC]. • NFL: Preseason, Carolina at Philadelphia (8 p.m., ET). Volleyball or football? Volleyball or football? (turns in man card) [Fox] • Soccer: MLS, Los Angeles at Chivas USA (10:30 p.m., ET). LA tries to secure the Super Clásico trophy! [ESPN2]