With just four episodes of “Monday Night Raw” remaining until WrestleMania 31, The Undertaker has yet to return to WWE. It’s all but confirmed that The Phenom will have a match with Bray Wyatt at the biggest pay-per-view of 2015, but fans still haven’t seen him on TV since his WrestleMania streak was ended on April 6, 2014.

After the Royal Rumble, Wyatt began delivering cryptic promos that appeared to be directed at The Undertaker. When the gong and The Undertaker’s music hit at WWE Fast Lane, the Deadman was nowhere to be found, and Wyatt emerged from a coffin, officially challenging the man who boasts a 21-1 record on The Grandest Stage of Them All. Wyatt cut another promo the next night on “Raw,” but The Undertaker still didn’t come back, as many expected.

According to PWInsider, fans won’t see The Undertaker until he faces Wyatt at WrestleMania 31. The report states that The Phenom will not return on “Raw” or “SmackDown” before the match is set to take place at Levi’s Stadium in Santa Clara, California. 

The Undertaker doesn’t have to show up on TV to respond to Wyatt. Just a few weeks ago, Sting answered Triple H’s challenge to meet him at Fast Lane, though he didn’t appear until the PPV. 

While The Undertaker hasn’t been a full-time wrestler for a few years, he’s always returned in time to help build the match for at least five weeks. If he were to return on the next edition of “Raw,” it would give The Undertaker vs. Wyatt a four-week build.

Last year, The Undertaker came back the day after Elimination Chamber to challenge Brock Lesnar. Before he fought CM Punk at WrestleMania 29 on April 7, 2013, The Undertaker returned on the Mar. 3 edition of "Raw." In 2012, he was back in January, while The Undertaker and Triple H began the build for their WrestleMania 27 match five weeks before the PPV.

According to the report, keeping The Undertaker off TV will make his return at WrestleMania 31 more of a surprise, because he hasn’t been seen on TV since he lost at WrestleMania 30. The Undertaker suffered a concussion in his loss to Lesnar, and he was rushed to the hospital after collapsing backstage. His status for WrestleMania 31 has been in question ever since, and it’s been unknown if he would be physically able to compete.

In the last 11 months, pictures of The Undertaker have sporadically popped up on social media. Most recently, his wife and former WWE Diva Michelle McCool posted a photo of The Undertaker training on Instagram.

The Undertaker will turn 50 years old before WrestleMania, having had 22 matches in the PPV's history. Wyatt made his WrestleMania debut last year, losing to John Cena.