For the second straight year, The Rock and John Cena will square off at WrestleMania.

The match that was billed as “Once in a Lifetime” at WrestleMania 28 will be the main event of WrestleMania 29. Cena earned a rematch by winning the Royal Rumble right before The Rock beat CM Punk to win the WWE championship.

Everything seems to be pointing towards a Cena victory at MetLife Stadium on April 7. The Rock was victorious in 2012, so it only seems fitting that Cena will win the belt in 2013. Cena is the biggest WWE star of the past decade, and rarely loses matches cleanly. It’s highly unlikely that he’ll be pinned by The Rock for a second time.

It’s still unknown how Cena will win. The most likely scenario has Cena pinning The Rock after hitting him with an “Attitude Adjustment.” However, there is a chance that Cena could pull off the victory in another fashion.

Could Cena turn heel in his WrestleMania 29 match with The Rock?

On the most recent edition of “Monday Night Raw,” Cena and The Rock answered questions from WWE Hall of Famers Dusty Rhodes, Bret Hart, Mick Foley and Booker T. When asked why he would beat The Rock this time around, Cena responded “because I have to.”

Was Cena hinting that he would win by any means necessary?

For the past few years, many fans have been calling for a Cena heel turn. The 10-time WWE champion has been the top babyface in the company for years, and up until now, there has been no indication that he would change his character.

On Monday, though, Cena left the door open for the possibly of a turn at WrestleMania. He claimed that he can’t lose, implying that he would do whatever it takes to win the title. That could mean Cena would even be willing to cheat to get his redemption.

Cena also stated on “Raw” that he beat himself at last year’s Pay-Per-View. It looked like he had the match in hand, but lost after trying to imitate The Rock’s “People’s Elbow.” He won’t let another victory slip away.

The Rock has been advertised to appear at Extreme Rules, the PPV that follows WrestleMania. The prevailing thought has been that The Rock will leave the WWE for Hollywood if he loses the belt at WrestleMania. An unfair loss to Cena would give him a reason to demand a rematch.  

It wouldn’t be hard to get the fans to turn against Cena. The superstar already gets booed more than many of the heels, and cheating against one of the most popular wrestlers of all time would cement his place as a “bad guy.”

Since the rematch between The Rock and Cena became official, the challenger for the WWE title has claimed that his loss at WrestleMania 28 ruined a year of his life. In the WWE’s promotional video for the fight, they even link Cena’s real life divorce to his loss to The Rock.

On multiple occasions, Cena has stated that he would never turn heel, not wanting to disappoint all of his young fans. The results of recent WWE PPV’s have been very predictable, and a clean win by Cena may be the most likely outcome.

However, the WWE has an opportunity to make a big splash if they choose to do so. A Cena heel turn would not only make sense, but it would change the landscape of the WWE for the foreseeable future.