Boston at Oklahoma City

Boston will make its first trip into Oklahoma City tonight to face the Thunder. The Thunder just can't put the ball in the net right now, but have stayed in games because of defense.  They eventually get worn down in the 2nd half by better teams. They are 9th in the league in points allowed, but the problem is they are managing just 84ppg themselves. The Celtics are a defense first team and will likely come in and put the clamps on early and if they get a big lead, which is quite likely, they may catch some rest for starters in the second half as this is back-to-back games for them. I'll grab the first-half UNDER here.