The Boston Celtics and Toronto Raptors will tip off in a battle between Eastern Conference contenders at noon ET on Christmas Day. The Celtics are favored by 3 points on the road, while the over-under is 213. Before you make any Celtics vs. Raptors picks or NBA predictions, you NEED to see what NBA specialist Mike Barner has to say.

Barner was recently nominated for Basketball Writer of the Year by the Fantasy Sports Writers Association, and his work has appeared in Sports Illustrated and Yahoo, among many major outlets. He's also been featured on ESPN Radio. Barner digs deep into NBA data, examining team trends and projecting game outcomes. Now, Barner's exhaustive analysis is paying off big-time at SportsLine. The No. 1 NBA expert, Barner is on a sick 33-19 run on against the spread picks, returning $1,208 to $100 bettors.

Now Barner has studied Celtics vs. Raptors from every possible angle. We can tell you he's found a critical X-factor that has him jumping all over one side of the spread. You ABSOLUTELY need to see it before you lock in your own picks.

Who wins Celtics vs. Raptors? And what critical X-factor makes one side of the spread a must-back? ... Join SportsLine right now to find out which side of the Celtics vs. Raptors spread you should be all over Wednesday, all from expert on a 33-19 NBA run!