It’s amazing what an imagination and social media will do, as evidenced by a rumor that blew up Saturday in which Derrick Rose would make his season debut Monday against the Denver Nuggets at the United Center. Two Bulls sources squashed the rumor, saying it’s business as usual for Rose as he recovers from surgery in May to repair a torn anterior cruciate ligament in his left knee. That means a full-go in practice Sunday and a re-evaluation Monday. Then it’s up to Rose to decide if he’s ready to return.