WrestleMania 35: 5 Surprise appearances or returns that can happen

WrestleMania 35 is now less than 2 weeks away and WWE has already announced most of the card. There are some huge matches booked for Mania as Rousey, Lynch and Flair make history by being the first women to headline WrestleMania. We also have Seth Rollins on a quest to slay The Beast as well as Kofi Kingston's shot at the WWE Championship.

Apart from what's been announced, WWE could also have a number of surprises up their sleeves.

#5 Rob Gronkowski

Mojo Rawley's best friend and Patriots tight end Rob Gronkowski has already been at WrestleMania. He helped Rawley win the Andre The Giant Memorial Battle Royale.

WIll Rob Gronkowski be at Mania this year? It's already been teased on social media by none other than Stephanie McMahon herself.

Stephanie McMahon said the following on Twitter:

Congratulations @RobGronkowski, this is a tremendous honor by one of my favorite organizations, @USOMetroDC, dedicate to serve those who serve and their families. Thank you for all that you do and good luck with your retirement! Doors are always open @WWE!

#4 Sami Zayn

Sami Zayn has been out injured for a while now. He underwent shoulder surgery last year at around the same time Kevin Owens was taken out of action. Zayn has been on the road to recovery for a while now and despite a couple of vignettes hyping a possible return, we haven't seen much of him. Let's hope he's ready to be back in action and WWE are just waiting for the right moment to bring him back.

However, if Zayn is ready to return, it won't be a total surprise if WWE anti-climatically adds Zayn to the Andre The Giant Memorial Battle Royale match. We did see Bray Wyatt return during the ATGMBR match last year.

#3 'Stone Cold' Steve Austin

According to a recent report, WWE is looking into the possibility of bringing in none other than 'Stone Cold' Steve Austin at WrestleMania for a short segment. If this does happen, expect Austin to hit a couple of Stunners to a couple of lower card heels (Jinder Mahal and the Singh Brothers are a good candidate) before bringing out the beer and celebrating with the fans.

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#2 John Cena

This one is a big one. At this point, Kurt Angle looks set to face Baron Corbin in the final match of his career at WrestleMania 35. However, there has been speculation suggesting that the match is just a placeholder and that John Cena will actually be the one to face Angle.

Cena is currently in Canada shooting for an upcoming film but the good news is that his shoot ends just days before WrestleMania.

#1 The Undertaker

The Undertaker could return at WrestleMania 35

Let's get this out of the way first, there isn't much of a chance that The Undertaker will actually wrestle a full match at Mania this year. However, according to rumours, WWE may have a big segment planned for The Undertaker that has actually been in the works for a while.

What could be WWE's plans? If you've watched WWE over the last few months, you'll recall that Elias has been repeatedly interrupted while trying to perform. All this is leading to a big angle at WrestleMania.

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Elias has already been named as the lead musical act at WrestleMania 35 and all this is to set up a segment with The Undertaker. At WrestleMania, there's a good chance that The Undertaker will interfere during Elias segment before laying him out with a Tombstone. Not only will this make fans happy, it will also mean that Taker won't have to compete in a full match.