It's estimated that $6 billion will be wagered on Sunday's 2019 Super Bowl between the Los Angeles Rams and New England Patriots. Some bettors will jump on the spread (Patriots -2.5) or total (56), while others will try their hand at prop bets like how long Gladys Knight will take to sing the National Anthem (Over-Under 107 seconds) and whether the Rams and Patriots will meet in next year's Super Bowl (No -400). Another popular Super Bowl wager is a parlay, picking the spread and total for a payout of nearly 3-1. Both picks must be correct for the parlay to cash, so it's important to make an informed decision. That's why you'll want to see the top NFL parlay for the 2019 Super Bowl from SportsLine's No. 1 NFL expert, R.J. White.

White cashed big last season in the world's most prestigious handicapping tournament, the Westgate Las Vegas SuperContest, tying for 18th out of 2,748 contestants with a 52-29-4 mark against the spread. It wasn't a fluke, either, as he also cashed big time in the 2015 SuperContest. 

Moreover, White went a perfect 4-0 against the spread on Wild Card Weekend. Over the past three months, White is on a stunning 56-36 roll in his spread picks for SportsLine. Anyone who has followed him is way up.

Now, SportsLine's No. 1 NFL expert has revealed against-the-spread and total picks for his 2019 Super Bowl parlay. We'll give one part away: For Super Bowl 53, we can tell you White is going with the over when these high-powered offenses meet up in Atlanta. 

He knows in the postseason, the two Patriots and Rams have combined to average 67 points and 930 yards of total offense per game so far. And even though both sides have buckled down against the run in the postseason, the Patriots are giving up 282.5 yards through the air per game, while the Rams are allowing 250 in the 2019 NFL Playoffs. 

Both teams finished in the bottom half of the NFL in total defense, with the Rams finishing 19th and the Patriots 21st. With the Rams' defense forced to account for Tom Brady, Sony Michel, James White, Julian Edelman and Rob Gronkowski on nearly every single play, they're going to have their hands full on Super Bowl Sunday. Similarly, the Patriots will face a potent Rams attack featuring Jared Goff, Todd Gurley, C.J. Anderson, Brandin Cooks and Robert Woods. Take the over with confidence in Super Bowl LIII.

White has also made the call on which side of the 2019 Super Bowl spread he's taking over at SportsLine. He says Vegas is vastly overestimating one player and doesn't want you to make the same mistake. He's only sharing who it is, and which side of the spread to jump on, at SportsLine.

So what side of the spread is R.J. White backing in his 2019 Super Bowl parlay? And which player is Vegas vastly overestimating? Visit SportsLine now to see the top Super Bowl parlay, all from the expert who keeps crushing the world's most prestigious handicapping tournament, and find out.