Bryan Hoch and Kat O'Brien report that Jorge Posada is experiencing some shoulder soreness.

"I played yesterday with it, and I could play today," Posada told Hoch. "It doesn't hurt me to throw, and it doesn't hurt me to hit. It's just sore."

For now, it doesn't sound like it's a big deal, but the Yankees are, understandably, playing it safe and keeping him out.