If Rey Mysterio is doing any pre-tapes before his return on SmackDown 1000, he'll be hoping they go a little better than this.

Even though WWE has technically had two major shows for almost 20 years, Raw still gets preferential treatment over SmackDown. That will definitely not be the case this coming week. That's because SmackDown will be celebrating its 1000th episode. The Undertaker will be in attendance, as will Evolution who will be reuniting for presumably one night only.

Another man who will be in attendance is Rey Mysterio. In fact, the former WWE Champion will be competing in a WWE World Cup qualifying match versus Shinsuke Nakamura. Talk about a dream match right off the bat. Hopefully, Mysterio will be sticking around on SmackDown. He is one of the Superstars who made it into the brand that it has become after all.

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Although SmackDown is live nowadays, for most of its existence it was a pre-taped show. Taped on a Tuesday night and aired on either Thursday or Friday. Mysterio will be thanking his lucky stars that the below clip took place during the blue brand's pre-taped era. The embarrassing footage obviously never made air, but it has been unearthed since for the entertainment of wrestling fans around the world.

Mysterio, Edge, and John Cena were backstage preparing for a six-man tag match against Chris Benoit, Kurt Angle, and Eddie Guerrero. How about that for a match packed with talent? While Edge and Cena are talking strategy, their luchador partner is performing pull-ups using a shelf in the background. Despite his smaller stature, the shelf can't hold Mysterio's weight. It breaks, he falls to the ground, Cena reacts by saying "holy moly" and the whole thing is just too much for Edge to bear who ducks out of shot laughing.

Considering the above moment and the match that followed happened more than 16 years ago, it's amazing to think that three of the six competitors may very well be competing in the World Cup at Crown Jewel. Sadly, two of them are no longer with us and Edge has since retired. Nevertheless, the outtake involving Edge, Mysterio, and Cena will never fail to make us laugh, and we're very glad it made it out of WWE's vault and into the mainstream.

NEXT: REY MYSTERIO PAYS TRIBUTE TO EDDIE GUERRERO ON WHAT WOULD HAVE BEEN HIS 51ST BIRTHDAY