Wrestlemania 31 is a good three months away and the World Wrestling Entertainment (WWE) has yet to come up with a single card for the much anticipated wrestling bonanza.

Wrestlemania 31 is scheduled to take place at the San Francisco Bay Area on March 29, 2015 with no matches made official yet by the WWE.

But if you have been following the WWE since Survivor Series, there may be four big potential matches coming our way.

Roman Reigns vs. Brock Lesnar for the WWE Heavyweight title

Picking up from where he left off, rumors have it that Reigns could be pitted against Brock Lesnar at Wrestlemania 31.

Reigns is scheduled to participate in the Royal Rumble this coming January 25. Should these rumors hold true, Reigns is expected to rule the rumble and face off against the champion Brock Lesnar.

With that said, it looks like the Brock Lesnar vs. John Cena title match will be in favor of the "Beast Incarnate", paving the way for an explosive face-off for the WWE World Heavyweight Championship.

Triple H vs. Sting

Dating back to Survivor Series, fans witnessed the historic arrival of Sting to the WWE. Sting interfered in the match pitting Team Cena vs. Team Authority, evening the odds and leaving Triple H with his patented move, the Scorpion Death Drop and helping Team Cena get the victory.

Nothing has developed since then, but seeing a Triple H vs. Sting match in Wrestlemania 31 makes sense. Should this materialize, it will be another one for the books of the WWE since it will be the Stinger's first-ever WWE match.

Cena vs. Russev for the US Title

If Roman Reigns and Brock Lesnar do get it on for the WWE title, where does this leave John Cena?

Word has it that Cena will turn his attention to Russev and the United States Championship. The benefactor from all of this is Russev, win or lose.

Undertaker to return vs Bray Wyatt

The Undertaker has been nowhere in sight since his streak got ended by reigning WWE champ Brock Lesnar but what is Wrestlemania without the 'Dead Man'?

If he is fit and up to it, we may see the Undertake once again and he may possible be taking on Bray Wyatt.

All these are rumors for now but if you have been following the WWE, these matches seem to be on course unless changes ensue months before the WWE particularly after the Royal Rumble.

Source: Sports World News