#4 Rey Mysterio vs Eddie Guerrero (WrestleMania 21)

When we think of wrestlers of Mexican heritage who made it big in WWE and other wrestling promotions, the names of Rey Mysterio and Eddie Guerrero are undoubtedly the first two names that come to our mind. As the pioneers of high flying style of wrestling, the two took the whole world by storm with their classic matches during their days in WCW.
Hence, when WWE started build a program around those two in early 2005, fans all over the world could smell a sensational contest between the two at WrestleMania 21. With so much history between the two, even a lack of proper storyline up to that point, which had the two agree to face each other despite being Tag Team Champions, had the fans invested for their match.
However, their match at Mania, which opened the grand event, left a lot of fans disappointed. Famous for their exceptional chemistry, the two wrestled a match that was very unusual for the pair, something which was not expected from them. What could have been a guaranteed show stealing contest eventually turned out to be an off day for both Eddie and Rey.