The seventh edition of the Money in the Bank pay-per-view comes to Las Vegas this Sunday with a contract for a WWE World Heavyweight Championship match on the line.

It is a contract that almost guarantees you a world title win, with only John Cena and Damien Sandow failing to cash in their contracts successfully.

Money in the Bank has hosted one of the greatest WWE Championship matches in recent history between Cena and CM Punk in 2011. 2016 will see another huge world title match as former Shield brothers finally face off for the biggest prize in WWE.

The Tag Team Championships will also be on the line in a Fatal Four Way, as The New Day defend against The Club, Enzo Amore and Big Cass, and The Vaudevillians.

United States Champion, Rusev will defend his title against Titus O'Neil while Women's Champion, Charlotte will team up with Dana Brooke to face Becky Lynch and Natalya.

Who will leave Vegas champion?

Can Rollins become a two-time World Champion and reclaim the title he never lost? | Photo: wwe.com

In a match that was meant to take place at Survivor Series last year, we will finally see Roman Reigns take on Seth Rollins for the WWE World Heavyweight Championship.

Reigns claimed the title at WrestleMania after defeating The Game, Triple H and has since defended the belt against AJ Styles at Payback and Extreme Rules.

But is Reigns the true champion? Not according to Rollins, who never lost the title and was forced to relinquish it due to injury last November.

The Architect returned to WWE last month after Reigns had defeated Styles, attacking The Big Dog from behind and raising the belt he was never defeated for.

Rollins will get his rematch this Sunday, as we see former tag team champions and Shield members square up for the first time for the ultimate prize.

Who will become the new Mr. Money in the Bank?

There is a 50% chance that the match will be won by a Canadian. | Photo: wwe.com

Six men will enter a ladder match for the opportunity of a lifetime. Cesaro, Kevin Owens, Sami Zayn, Chris Jericho, Alberto Del Rio, and Dean Ambrose will do battle for the right to become Mr. Money in the Bank.

In what is an open field, with a blend of rookies, fan favorites, and veterans, there is no clear favorite to win the briefcase, which was won last year by Sheamus, who finds himself on the pre-show against Apollo Crews.

Monday night's episode of Raw saw Y2J climb the ladder and retrieve the briefcase, but despite inventing the match, Jericho has never won a Money in the Bank ladder match.

Del Rio is the only former winner in the match, with Owens and Zayn making their first ever appearances.

Ambrose came close to winning the contract 2014, only to be beaten by Rollins, and a win for The Lunatic Fringe could set up an interesting dynamic between The Shield as they all lay claim to the WWE World Heavyweight Championship.

AJ Styles - John Cena, TNA - WWE

AJ Styles turned on Cena when the 15-time champ returned from injury. | Photo: wwe.com

It is a match that is probably too big for the occasion. The former face of rival promotion TNA, AJ Styles will go one-on-one for the first time with The Face That Runs The Place John Cena.

And it will be a one-on-one match after Styles chose to take on Cena on his own rather than having Karl Anderson and Luke Gallows at ringside.

It is a match that is WrestleMania standard and a feud that should run throughout the summer and culminate at SummerSlam. With a bit of luck, we will see a hat-trick of classic matches between Styles and Cena.

The first of those will come on Sunday. Will it be AJ Styles chanting "you can't beat me" or Cena waving "you can't see me" at the end of Money in the Bank?