From ESPN.com Francis bothered by injured shoulder ESPN.com news services It is looking like Rockets star guard Steve Francis will have a busy offseason. The Houston Chronicle reports Francis will undergo arthroscopic surgery on his strained right shoulder May 30, according to Houston trainer Keith Jones. The guard will then need 4-to-6 weeks of rehabilitation. The Houston newspaper also reports Francis' agent is looking into a trip to the Mayo Clinic to help the guard with his migraine-like symptoms that caused him to miss six games last year.