Former Cubs slugger Sammy Sosa said his jersey No. 21 should be retired and its continued use shows the strain in his relationship with his old team. "That number should be untouchable because of the things that I did for that organization," Sosa said in an interview with Chicago Magazine. "That right there shows me that they don't care about me, and they don't want to have a good relationship with me." Cubs rookie outfielder Tyler Colvin wears No. 21. Former Cubs pitcher Jason Marquis also wore it from 2007-08.