<a href="http://sportsbybrooks.com/cubs-ryan-dempster-offseason-includes-training-to-be-ninja-and-harry-caray-impersonator-12450.php" target="_blank">Sports by Brooks</a> found this offbeat story: Cubs closer Ryan Dempster has spent his offseason <a href="http://www.azstarnet.com/sports/174627.php" target="_blank">training to be a ninja</a>.