Mary Carillo by Steve Freeman/NBC
Cheers to Mary Carillo for doing faultless double duty. Her travelogues were among the highlights of NBC's Beijing Olympics coverage, especially when she sampled some outlandish local cuisine (scorpions on a stick, anyone?). Now the former tennis pro has returned stateside to provide expert commentary for CBS' coverage of the U.S. Open, where her levelheadedness is always a perfect counterpoint to John McEnroe's volatility. In any arena, Carillo's an ace.

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