Yankees Lead BoSox 1-0 in Game 2 of ALCS NEW YORK - Gary Sheffield hit an RBI single, and the New York Yankees took a 1-0 lead over Pedro Martinez and the Boston Red Sox in Game 2 of the AL championship series Wednesday night.    New York starter Jon Lieber allowed only one hit and a walk, stifling Boston's sluggers just as Mike Mussina did the night before...