The NFL divisional schedule features a matchup between one of the league’s most popular teams and an up-and-coming offensive juggernaut, as the Dallas Cowboys take on the Los Angeles Rams at 8:15 p.m. ET on Saturday. Dallas was the only favorite to come through during Wild Card Weekend, but now they are seven-point underdogs on the West Coast. The Over-Under, or total number of points Vegas believes will be scored, opened at 49.5, but has risen to 50 in the latest Rams vs. Cowboys odds. Both teams have won and covered their last two outings. This game features a wealth of talent, with stars like Dak Prescott and Ezekiel Elliott dueling against Jared Goff and Todd Gurley, so before you make your NFL playoff predictions, be sure to check out the latest Rams vs. Cowboys picks from SportsLine’s No. 1 NFL expert, R.J. White.

White went a perfect 4-0 against the spread on Wild Card Weekend, including nailing Dallas (-1.5) against the Seahawks. He also has an uncanny feel for the Rams: In his past 24 against-the-spread picks involving Los Angeles, White has been right 19 times. Moreover, White is on a sparkling 55-31 roll on all his NFL picks, returning nearly $2,100 to anyone following them.

This is the same expert who has cashed big in last season’s Las Vegas SuperContest, tying for 18th out of 2,748 contestants with a 52-29-4 mark against the spread. Anyone who has followed him is way up.

Now, White has broken down Rams vs. Cowboys (stream live on fuboTV) from every angle and locked in a strong pointspread pick. He’s sharing it over at SportsLine.

White knows the Rams led the NFC in scoring (32.9 points per game) and total offense (421.1 yards per game) with a balanced attack built around Gurley. He erupted for 21 touchdowns in just 14 games and will likely be ready to roll Saturday after sitting out the final two games of the regular season with a knee issue. On the other side of the ball, Aaron Donald anchors a fierce defensive front. The only unanimous first-team All Pro after racking up 20.5 sacks and forcing four fumbles, Donald demands a constant double-team, and often that’s not enough to block him.

But just because the Rams are a rested powerhouse doesn’t mean they’ll cover a touchdown against the streaking Cowboys.

White knows that against the Seahawks last week, the Cowboys’ defense buckled down when it needed to most, allowing just two third-down conversions in 11 tries by Seattle. The defensive pressure, combined with a masterful 137-yard performance from Elliott, that helped Dallas dominate time of possession, 34:50 to 25:10.

The Cowboys have also had a history of slowing down high-powered offenses this season. In a Thursday Night Football game in Week 13, Dallas held Drew Brees and the high-flying Saints to just 10 points. Prescott had nearly twice as many passing yards (249) as Brees (127). The Cowboys gave up 20 or fewer points nine times this season and had the NFL’s sixth-ranked scoring defense at 20.3 points per game.

We can tell you White is leaning under, but he has unearthed a critical x-factor that causes one side of the spread to hit hard. He’s only sharing what it is, and who to back, at SportsLine.