Rumors are swirling around the Internet this morning about the future of former UFC heavyweight champion Brock Lesnar after a "confrontation" between Lesnar and World Wrestling Entertainment superstar The Undertaker was captured on tape.

As you can see in the video, MMAFighting.com reporter Ariel Helwani caught up with The Undertaker right after the fight, and in the middle of the interview Lesnar, who was leaving the cageside area, walked by The Undertaker. Taker proceeded to give Lesnar the evil eye and ask "do you wanna do it?"

Lesnar walked off, and Helwani tried to continue the interview, asking Undertaker what he just said to Lesnar. "It's kind of a personal thing," Undertaker responded.

Helwani pressed him further, asking if they were "cool" and he responded again "it's personal."

On his podcast last night, Yahoo! Sports MMA reporter and pioneer wrestling journalist Dave Meltzer reported that Vince McMahon is attempting to put together a match between The Undertaker and Brock Lesnar for the next Wrestlemania. "What I can tell you is there is no deal for that match, but (The WWE) do want that match," Meltzer reported.

"Obviously Brock has been contacted," Meltzer continued.

Meltzer says that Lesnar would not be able to do the match with his current UFC contract.

When asked by Helwani about the confrontation, UFC President Dana White said he knew nothing about it and had not heard that WWE was interested in bringing Lesnar back. White told Helwani that he found it hard to believe that Lesnar would be interested in going back to WWE.

White told reporters at the press conference that he and Lesnar had been fighting a lot over the past month.

Lesnar signed with the WWE right out of college. He walked away from a long-term contract, estimated to be worth $1 million a year, in 2004. After failing to make the Minnesota Vikings after a tryout in 2005, Lesnar briefly considered for a return to WWE but eventually withdrew from negotiations. Lesnar then sued the WWE in an attempt to be released from the 10-year no-compete agreement he signed with WWE to secure his release. Eventually both sides settled out of court, paving the way for Lesnar to enter the UFC.

The Undertaker is expected to be in Minneapolis tonight for the WWE pay-per-view Bragging Rights, which originates from the Target Center starting at 7 p.m.