Rivera Comforts Relatives in Panama NEW YORK - Amid the bustle of the New York clubhouse, Mariano Rivera's untouched locker stood out as a reminder that the New York Yankees might be without their best pitcher in the opener of the American League championship series.    Rivera flew home to Puerto Caimito, Panama, after two family members were electrocuted in his pool, leaving the possibility that he might not be available for Game 1 of the ALCS against the Boston Red Sox on Tuesday...