DALLAS -- Diehard basketball junkies would have paid big money for a glimpse of the Mavericks’ basketball court Thursday morning. For about 15 minutes, Dwyane Wade and LeBron James played one on one. Two of the best wings in the game play together on the same team, but it’s a rare thing for Wade and James to go up against each other after a practice or shootaround. It has happened only a handful of times and never with reporters present. Thursday morning offered the exception.