At WWE WrestleMania 38 this weekend at AT&T Stadium, Universal Champion Roman Reigns faces WWE Champion Brock Lesnar in a 'Winner Takes All' title match.

The main event of WrestleMania 38 this Sunday will see WWE crown a Unified WWE Universal Champion for the very first time.

The match between Roman Reigns and Brock Lesnar is being dubbed, by WWE themselves, as the biggest WrestleMania main event in history, and it's hard to argue differently.

And now, a potentially huge spoiler for the match has emerged, so only continue reading this piece if you don't mind having the result potentially spoiled for you.

As noted by WrestleTalk, local advertisements for the post-WrestleMania house shows next month may have just given away the result of the huge match.

The current advertisements for the first WWE Live Event after WrestleMania in Pennsylvania on April 16 has Roman Reigns listed as the Universal Champion.

Of course, he's the champion right now, but the fact he's involved in the top match at the house show, as the champion, does suggest he's going to be winning the match this weekend.

The card for any WWE show, as always, is subject to change, but it does seem like Roman Reigns is going to still be on TV as the top champion heading out of WrestleMania.

The betting odds for the show also have Roman Reigns as the clear favourite, so all signs are pointing towards 'The Tribal Chief' walking out of WrestleMania with both world titles.

For what it's worth, The Undertaker, in a video uploaded to WWE's YouTube channel, gave his prediction for the match and said Roman Reigns would win, which you can read more about by clicking here.

You can watch WrestleMania 38 this weekend live in the US on Peacock and in all other international markets on the WWE Network.