The Boston Celtics warmed up for their critical game against the streaking Golden State Warriors on Friday night by holding on to beat the Chicago Bulls 105-100 Wednesday at the Boston Garden. Forward David Lee scored six points and guard Evan Turner had two points and three assists during a 10-0 run early in the fourth quarter for the Celtics who turned a 77-77 tie into an 87-77 lead with 6:55 left on the clock. "That was a good win because both teams were playing at a pretty high level throughout the course of the game," Boston coach Brad Stevens said.