The Chicago Bears visit the NFC North-rival Detroit Lions on Thanksgiving Day. Kickoff is set for 12:30 p.m. ET. Chicago is a 5.5-point favorite, while the Over-Under for total points scored is 37.

Before you make any Bears vs. Lions picks of your own, you NEED to hear what NFL expert R.J. White has to say.

The stats guru, whose picks are coveted by fans everywhere, has hit it big in the world's most prestigious handicapping tournament -- the Westgate Las Vegas SuperContest -- twice in the past four years. And no one knows the Bears like White. In fact, he has hit 25 of his last 37 against-the-spread picks involving Chicago! Anyone who has followed him is WAY up.

We can tell you White is leaning Under on Thursday, but his much stronger play is on the spread. White has found a crucial x-factor that has him going BIG on one side. You ABSOLUTELY need to see it before locking in your own picks.

Who wins Bears vs. Lions on Thursday? And what crucial x-factor makes one side of the spread a MUST-BACK? ... Join SportsLine right now to see which side of the Bears vs. Lions spread you need to back on Thursday, all from the acclaimed expert who's 25-12 on Bears picks!