Reinforcements could be on the way for LeBron James and the defending NBA champion Cleveland Cavaliers, who had an underwhelming 7-8 record in January. Veteran point guards Mario Chalmers and Kirk Hinrich, and wing Lance Stephenson are scheduled to work out for the Cavaliers on Wednesday, league sources informed ESPN. Other free-agent prospects are expected to attend the session, sources say. Depending on how well the participants perform, sources with knowledge of the Cavaliers' thinking believe one could be signed prior to the All-Star break. Cleveland has one roster spot available, but could open up another slot should the team elect to waive center Chris Andersen, who is out for the rest of the year with a knee injury. James has publicly called for the Cavaliers front office to add a veteran playmaker to the roster. Chalmers, 30, has recovered from a right Achilles tear that occurred last March, when he was a member of the ...