New York Yankee Alex Rodriguez has filed a medical malpractice lawsuit against the team’s physician, Dr. Christopher Ahmad, and New York Presbyterian/Columbia University Medical Center.  Rodriguez’s suit alleges that Dr. Ahmad failed to properly diagnose a left hip injury during the 2012 season and inappropriately cleared Rodriguez to continue playing during the 2012 postseason.  According to the suit, the injury appeared on a 2012 MRI that was performed at New York Presbyterian.  Rodriguez underwent surgery on his left hip in January of this year.  In July of this year, Dr. Ahmad diagnosed Rodriguez with a quadriceps strain, just as Rodriguez was about to return from his hip rehab and begin playing again.  Rodriguez disputed this and sought a second opinion from another doctor, setting off a public feud between Rodriguez and the Yankees.  This recent lawsuit follows suits filed by Rodriguez against Major League Baseball and Commissioner Bud Selig.  Rodriguez was suspended by Major League Baseball for 211 games for using performance enhancing drugs.