#4 Mr. McMahon vs. The Undertaker in a Buried Alive match at Survivor Series 2003
Tensions flared between The Undertaker and Mr. McMahon in 2003 when the company's Chairman played a hand in costing The Deadman a lot of matches. Their feud culminated in a Buried Alive match at that year's Survivor Series.
The Undertaker was dominating over McMahon from the get-go and when it seemed like he was going to put Mr. McMahon away by dragging him to the gravesite, 'Taker's half-brother Kane came out of nowhere to interfere and threw him into the grave. Mr. McMahon operated the loader to dump all the dirt on the grave over Undertaker to win the match. Even though Undertaker lost, the intriguing conclusion to the match is still talked about to this day.
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#3 The Undertaker vs. Batista at Survivor Series 2007
The Undertaker took on Batista for the latter's World Heavyweight Championship in a Hell in a Cell match in the main event of that year's Survivor Series. The two Superstars had a bloody and brutal match in which they traded vicious blows.
The Deadman tried to score the pin on Batista when he hit The Animal with the second Tombtstone Piledriver of the night on the steel-steps. As the referee was making the count, Edge under the guise of a cameraman took out the referee and hit The Phenom with the camera he was holding and then slammed his head with a steel chair.
He then dragged Batista's unconscious body over Undertaker and when the referee re-entered the ring he counted the pin and awarded the victory to Batista. Although Undertaker lost the match, it set up a great three-way feud between him, Batista and The Rated-R Superstar.