Gary Sheffield is beginning his third season with the Yankees, said he was still not comfortable in pinstripes despite back-to-back seasons with at least 30 home runs and 120 runs batted in. "I'm not allowed to be comfortable, and that's the reality of my situation," he told The Associated Press before the Yankees' 8-3 exhibition victory over Florida. "I always have to play with my back against the wall. Just one more year of that, and then I don't have to do it no more."