One of the most legendary backstage fights in professional wrestling is the titanic encounter between the Big Show and the Great Khali. Several WWE Superstars have told their story of what happened, but the Undertaker just laid out his own version of events, along with how he ribbed Big Show after the fact.

At a WWE event in Puerto Rico, Show and Khali had been partners in a tag team match. After Khali allegedly stole one of Big Show's signature moves -- pushing his opponent into the corner, shushing the crowd and delivering a big slap to the chest -- Show got heated with Khali after the match and words eventually turned into blows.

On the latest episode of Six Feet Under, Undertaker and Michelle McCool spoke with Mark Henry about the fight.

"To his credit, Khali can take a shot, because Show flushed him," Undertaker said. "I mean, it sounded like taking a big ol' rib eye steak and throwing it on the counter. It was like [smack!]. I don't know if something held [Khali] up, but if I'd have hit him that way, I would've had to look and see what was holding him up from behind, because Show rocked him."

Undertaker continued, "[William] Regal broke the whole thing up. Regal came in there like a spider monkey, in a towel. He had Khali fish hooked and had Khali's head ripped around. It was impressive."

A consummate ribber, Taker went on to reveal how he's continued to poke at the Big Show over the years.

"I give Show grief. I probably shouldn't even tell the story cuz I've never let him off the hook. Show was getting was getting to him, right? The fight happened, obviously, in the men's dressing room... so they're fighting right? Two seven-footers going at it and they tripped over a bag or something like that. So when they tripped and they both fall, Show just happened to fall on bottom. So when Regal broke it up, Khali's on top."

"So it gets all broke up and they're separated and Show's in the dressing room with me and I'm just looking at him and he's like, 'What?!' I was like, 'Dang man, he had you down.' Oh my gosh, I thought he was actually going to come across the room and attack me he was so mad."

"I remember you were doing it to him on the bus or something," McCool added. "You said something about, 'You got one good shot in,' and Khali was like, 'Yeah but my jaw only hurts from the fish hook.'"

Listen to the full story at around 1:27:00 in the video below.

In his version of the story, Khali claims that he knocked Big Show down with a punch, which the Undertaker did not recall.

"I took off my shoe, and then he came to punch me," Khali said. "I leaned back. I got up and leaned again for the second punch. When I punched him, he got knocked down and I got on top of him. After two or three punches, all the people in the locker room pulled us apart. Afterward, he started crying. He thought he could impress the young talent by taking me out, but it backfired on him."

Chris Jericho wrote in his book The Best in the World: At What I Have No Idea that Khali did strike Big Show back after being hit, but noted that Show and Khali ended up on the floor because they tripped over.

10 Infamous Receipts in Pro Wrestling History

In pro wrestling, a "receipt" is an ass-kicking that you brought upon yourself. It comes from the cardinal rule of the business -- always take care of your opponent. If you fail to do that, the repercussions will fall squarely on your head (often via chair shot).

The Undertaker recently explained the purpose of giving receipts in wrestling. "I'm pretty patient [when it comes to giving a receipt]. It all depends on intent," the Deadman said. "Some guys just work very snug. I pride myself on my punches. I feel like I can make it look like I can take your head off and not touch you. Every once in a while one gets away from me... I'd much rather it be there than it miss. It ain't ballet."

But not all receipts come after a stiff shot gets away. Sometimes a performer delivers a receipt to protect themselves from an unsafe worker, like when Taker had to shut down Giant Gonzalez at Wrestlemania IX. "[Gonzalez] cracks me right across the back of my neck, and then once I get back the feeling in my little fingers... I flipped," Taker recalled on his podcast. "I turned around and just started wailing on him."

Let's go back to classic WWE, the old territories, and even a battle between monsters in Japan. Here are 10 of the most infamous receipts in pro wrestling history.

Gallery Credit: WWE / NWA / HWA / YouTube