The next event for the WWE is Hell in a Cell and it is still a month away, but the main event was announced at last Sunday's Night of Champions. The rivalry between The Undertaker and Brock Lesnar will culminate inside Hell in a Cell.

The two have split their encounters since WrestleMania 30 wherein "The Beast" ended The Undertaker's undefeated streak at the event. "The Deadman" got his revenge at SummerSlam by choking out Lesnar with the "Hell's Gate" submission. The win is surrounded in controversy as The Undertaker tapped out first via Kimura Lock, but the referee never saw it.

The former UFC Heavyweight champion's final battle against The Undertaker is part of WWE's promotion of the WWE Network and is named "Brock Lesnar's Go To Hell Tour." Lesnar will face The Big Show at the live event in Madison Square Garden on Oct. 3. He will also appear on Stone Cold Steve Austin's live podcast on Oct. 19 before facing The Undertaker inside Hell in a Cell on Oct. 25.

Other rumoured matches on the Hell in a Cell card as reported by Inquisitr are:

Seth Rollins (c) versus Kane for the WWE World Heavyweight Championship

"The Big Red Machine" returned at Night of Champions as he disrupted Sheamus' attempt to cash-in his Money in the Bank briefcase but also proceeded attacking the WWE champion. On the latest episode of RAW, "Corporate" Kane and "Monster" Kane both showed up and messed with Rollins.

Charlotte (c) versus Paige for the WWE Divas Championship

As per WWE, Paige officially turned heel on this week's RAW, as she gave a promo about her frustrations during Charlotte's title celebration. Nikki Bella can be added to the mix to make it a triple threat match, but it looks like she will be having her rematch before Hell in a Cell.

Kevin Owens (c) versus Ryback for the Intercontinental Championship

KO won his first main roster title after beating Ryback at Hell in a Cell. He used a rake to the eyes then a roll up to steal the win and the championship. "The Big Guy" will probably get his rematch at the October event.

The New Day (c) versus The Dudley Boyz for the WWE Tag Team Championship

The Dudley Boyz failed to capture their 10th WWE tag team titles as they won via disqualification at Night of Champions. The teams will surely clash for the tag team belts at next month's event with Xavier Woods probably being himself again for The New Day.

The Wyatt Family versus Roman Reigns, Dean Ambrose and Randy Orton

This feud continues as Reigns and Ambrose found another partner as they try to take down the Wyatt family. Inquisitr reports that this match could be done inside Hell in a Cell.