The Undertaker is keeping his cards close to his chest as rumor has it that an announcement will be made about a match with John Cena on April 2.

WWE fans are itching to find out when The Undertaker and John Cena will do battle at Wrestlemania 34, if indeed the Deadman accepts Cena's challenge. 

Cena threw down the gauntlet during Monday Night Raw last week, but even though Wrestlemania 34 is inching closer, The Undertaker still hasn't confirmed whether he's taking him up on it. 

Of course fans are expecting that he will and it's just a matter of time before he comes out of the shadows to answer, which is typical of The Undertaker's style - he's never been one to give a quick answer. 

It will be a thrilling match if the pair do come face to face as expected, as The Undertaker last appeared at the Raw 25th anniversary amid rumors that he's about to bow out once and for all from the wrestling scene and retire from WWE permanently. 

WrestleMania 34 takes place in just over two weeks and according to Cagesideseats.com, it's rumored that the duel between the two will not be made official until the go home episode of Monday Night Raw on April 2, which is the last Raw event before WrestleMania 34.  

Cena will have to brush up his skills before WrestleMania 34 if his performance on Monday is anything to go by as his challenge to The Undertaker was answered by Kane instead who entered the ring and chokeslammed him. 

Cena's been riding high as the face of WWE for quite some time so it would be interesting to see if The Undertaker could resurrect from his defeat against Roman Reigns to bow out with an epic victory over Cena as his WWE swansong.

He's never officially said he's going to retire - it's just been assumed by fans and WWE commentators - so who knows, a win over Cena would maybe even stir him to stay in the ring a little longer.