1. The Undertaker vs. The Giant Gonzales (SummerSlam 1993)
One of the worst feuds of The Undertaker's career was against The Giant Gonzales. First starting at the 1993 Royal Rumble, the pair would collide at WrestleMania. Even after that disaster of the match, WWF officials decided to keep the feud rolling through King Of The Ring and into SummerSlam '93. It was odd that either man wrestled at King Of The Ring, but fans should have been thankful for that. At SummerSlam, the match was dubbed a 'Rest In Peace' match, which effectively meant there were no disqualifications. Even the added stipulation of no rules didn't help, Gonzales was too slow and plodding to really do much. Combine his lack of substance to the zombie-like nature of The Undertaker, and there was no chance of a surprise brawl or good match. The Undertaker vs. The Giant Gonzales must surely go down in SummerSlam history as one of the worst matches to ever grace the Pay-Per-View series.