Suns forward P.J. Tucker will miss training camp, preseason and likely the early parts of the regular season after undergoing a low back microsectomy procedure Thursday. Valley spine specialist Dr. Dennis Crandall performed the surgery, which typically addresses a herniated lumbar disk and relieves nerve pressure. The team’s announcement did not give specifics beyond stating Tucker would be out six to eight weeks. That puts a return to basketball activity either immediately after the Suns’ Oct. 26 regular-season opener or closer to Nov. 10 after eight Suns games.