Ever since Brock Lesnar ended the Undertaker's undefeated streak at Wrestlemania 31, he has been unstoppable. He's destroyed everyone that has come in his path. And last night at the WWE PPV Battleground, he was wrestling Seth Rollins for the WWE Championship and just as it appeared that Lesnar was about to win the WWE Title, the lights went out and when they came back on The Undertaker was in the ring and he attacked Lesnar and gave him a choke slam and a tombstone piledriver.

So The Undertaker has returned and it's obvious that he wants a rematch with Lesnar, which will happen at Summer Slam.