A major return happened this week on Monday Night RAW, as Kane returned during the main event steel cage match between Roman Reigns and Braun Strowman, attacking The Big Dog and helping The Monster Among Men win the match.

The Big Red Monster returned to WWE after 10 months away by clawing his way through the ring mat from underneath the ring, much to the surprise to WWE fans watching the show live in the arena and on their TV screens at home.

Kane then attacked Reigns by delivering a chokeslam and a tombstone piledriver to The Shield member, allowing Strowman to pin The Big Dog after he gave him another running powerslam himself.

After this, with The Devil's Favourite Demon and The Monster Among Men standing tall over Reigns in the middle of the ring, The Miz announced from the top of a ladder that Kane would be the fifth member of his team at T.L.C.: Tables, Ladders, and Chairs pay-per-view this weekend against The Shield.

Since Kane made his surprise return, speculation has emerged over the possible reason why he returned and specifically attacked The Big Dog during the main event of RAW this week.

According to Wrestling Inc, the three-time world champion attacked Reigns to begin his payback on him for retiring his brother, The Undertaker, at WrestleMania 33 earlier this year. They have also suggested The Undertaker could return at Survivor Series, with The Deadman possibly teaming with The Shield.

Reigns, of course, appeared to have retired The Undertaker after he defeated The Phenom in the main event of WrestleMania 33 back in April, as, after the loss, he left his iconic hat, coat, and gloves in the middle of the ring. However, neither the man himself nor the WWE has officially announced his retirement, meaning he still could come back in the future for another match.

According to Wrestling Inc, that match could very well happen at Survivor Series next month.

There's bound to be a greater storyline in play than just Kane returning to attack Reigns in order to be the fifth member of the match against The Shield this weekend at T.L.C. We'll just have to wait and see how it all plays out in the next couple of weeks.