Push comes to shove for Zim By Jim Caple BOSTON -- One day after his fight with Pedro Martinez during Game 3 of the Red Sox-Yankees series, Don Zimmer choked back tears and told a room filled with reporters that he was embarrassed by what happened. "I'm embarrassed for the Yankees, the Red Sox, the fans, the umpires and my family," he said. "That's all I have to say, I'm sorry." Zimmer sheds crocodile tears as he prepares for battle in Game 4. At least, that's all he had to say to most reporters. He explained his feelings at...