Rafael Furcal, who has been on a rehabilitation assignment with Albuquerque for most of the past week, returned to Los Angeles today, but plans to activate him as soon as this weekend in Chicago are on hold for the moment. Ramona Shelburne of ESPNLosAngeles.com passes along word that Furcal banged his knee on a slide Tuesday, and though it doesn't seem major, the Dodgers want to check it out (perhaps aware that nothing ever isn't major with this team).Meanwhile, Casey Blake is not ready to return from the disabled list either, Mattingly said.""I'm still hopeful with Fook," Dodger manager Don Mattingly told Shelburne. "Stan (Conte) looked at it and he didn't think it was anything too serious. He was actually encouraged. So we still have a chance to get Fooky back on the trip