BOSTON: LeBron James didn’t sound overly concerned after straining his groin in the waning minutes of Los Angeles’ 111-101 loss to Boston on Saturday night. He also wasn’t willing to put a timetable on how fast he could be back on the court as the Lakers look to maintain their recent surge in the standings. “Not much concern,” James said. “Obviously, I’m day-to-day. I’ll look at it each day and see if it gets better, and take the proper measures to see what I need to do moving forward.”