Undertaker returns at Battleground

Just when Brock Lesnar appeared to be on the verge of defeating Seth Rollins and reclaiming the WWE World Heavyweight Championship, the lights went out, a familiar DONG sounded ... and the Undertaker appeared in the ring. Undertaker delivered two Tombstone piledrivers to the Beast Incarnate, presumably rendering the match a no contest.

Undertaker then posed while the crowd chanted "ONE MORE TIME," then raised his fist in triumph at the top of the ramp as his music played and the show went off the air.

This was Undertaker's first appearance on WWE television since WrestleMania 31, when he defeated Bray Wyatt. Of course, Undertaker's beef with Lesnar stems from last year's WrestleMania XXX, when Lesnar snapped Undertaker's unparalleled undefeated streak on the grandest stage of them all. Lesnar will forever be the one in what is now 22-1, so Undertaker is out for retribution. Sometimes it takes a year of perspective before you're ready to fight Brock Lesnar again. We totally understand.