From Jon Heyman:Yankees outfielder Xavier Nady has been diagnosed with a ligament strain in his right elbow and will avoid surgery, SI.com has learned.The Yankees feared originally Nady could be lost for the season with a completely torn ligament, but a review of multiple X-Rays revealed what doctors are now calling merely a strain. He will likely need to rehab the injury for a period of weeks.Very good news, especially for Nady himself. Coming off of Tommy John surgery isn't the best way...