The wrestling world was stunned last year when the referee's hand hit the mat for a third time, counting The Undertaker down at WrestleMania XXX and placing Brock Lesnar's name in the history books as the man that ended The Streak.

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For the very first time, The Undertaker lost at WrestleMania when he fell to 21-1 at the hands of "The Beast" at the Mercedes-Benz Superdome in New Orleans.

Stunned silence filled the arena; fans' jaws hit the floor around the world as disbelief fell over the WWE Universe.

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It was arguably the most shocking moment in WrestleMania history and catapulted Lesnar into the biggest threat in the WWE.

Now, after months of mystery surrounding his future due to the end of The Streak and an injury he sustained at the event, The Undertaker will return.

'Taker and Brock Lesnar are both heading into WrestleMania 31 in different roles, but should their paths converge in a rematch at WrestleMania 32?

The Undertaker hasn't been seen since that fateful night he lost to Lesnar last April, but he will emerge in the flesh for the first time since that crippling defeat to do battle with Bray Wyatt at WrestleMania 31 live from Levi's Stadium in Santa Clara, Calif.

After rumors that The Undertaker would face Sting circulated for years, he will step in the ring with "The Eater of Worlds" Sunday night while "The Vigilante" will battle Triple H.

As for Lesnar, similar to The Undertaker, he was scarcely seen following WrestleMania XXX, but when he was on WWE television, he made his presence known.

"The Beast" used the momentum from defeating The Undertaker to skyrocket to the top of the WWE, decimating John Cena at SummerSlam in August to capture the WWE World Heavyweight Championship.

Now, with a freshly minted contract in tow, Lesnar will take on Roman Reigns in the main event Sunday night under the bright lights of the WWE's marquee event.

One thing is for certain, win or lose The Undertaker and Lesnar will once again leave our television screens after Sunday night. 'Taker will lick his wounds and likely be absent for another year while Lesnar -- champion or not -- will appear every now and again when his part-time contract demands him to.

When the dust settles on WrestleMania 31 Sunday night, rumors and speculation will already start to rise over what the roles will be for key Superstars -- including Lesnar and The Undertaker -- at WrestleMania 32 at AT&T Stadium in Arlington, TX on April 3, 2016.

There are already rumors that Lesnar will face Dwayne "The Rock" Johnson while we've already touched on what could be a fitting ending to 'Taker's career by having him face Sting next year, but could a rematch between "The Deadman" and "The Beast" loom at WrestleMania 32?

The Undertaker had never lost at WrestleMania and it seems a little bit odd that the WWE has him returning on Sunday to face Wyatt without him ever publicly addressing losing to Lesnar.

It's one thing to keep the mystery of his character alive, but to have him transition to another feud just because another Superstar calls him out without acknowledging his failures is a bit odd.

Wrestling is all about psychology, so even if 'Taker gets past Wyatt, fans would have to believe that the loss to Lesnar still weighs on his mind and that it has consumed him over the last year.

The Undertaker could sell that desperation to beat Lesnar by issuing a challenge to him next year when WrestleMania season rolls around.

It would be interesting after years of different Superstars summoning The Undertaker to go after The Streak to see the roles reversed with 'Taker trying to get Lesnar to face him in the middle of the ring.

Even without The Streak, 'Taker still gets requests as this year it was Wyatt who initiated the feud with the Demon from Death Valley.

It's still my opinion -- as I wrote in the Sting piece -- that Wyatt should go over 'Taker because the win does more for him than it would for 'Taker to get a victory over an up-and-coming deep character like the "Eater of Worlds" only to go into hibernation until spring comes around again next year.

The Undertaker could then be desperate to avenge two losses, setting up a program with Sting in Texas, the state where both men reside, in a way for both legends to close out their careers with The Undertaker being desperate to win a WrestleMania match for the very first time in his career.

While that's the route I would go, an Undertaker-Lesnar encounter shouldn't be written off either as The Undertaker should at least acknowledge his huge loss at some point.

The Undertaker, 50, will likely shut things down soon as Lesnar nearly killed him last year and his past few WrestleMania matches - all classics - have taken their toll on him.

Another way I'd go, if the WWE doesn't want 'Taker to lose two matches in a row, would see The Undertaker go over Wyatt on Sunday, leaving just one man as the only person that beat him at the biggest show in WWE lore.

'Taker could still make Wyatt look great in the win - like he did with CM Punk at WrestleMania XXIX - and go over.

If the WWE goes that route, it would make sense for 'Taker to be out for vengeance next year, unable to retire until he defeats Lesnar at the biggest show of the year after it ate at him for two long, grueling years.

The Deadman will rise again this Sunday night at Levi's Stadium at WrestleMania 31, but he shouldn't forget falling to "The Beast" when the ash settles on the biggest show of the year and the attention turns to WrestleMania 32.

There's only so much time left for The Undertaker in the WWE.

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