#2 Stone Cold Steve Austin vs Brian Pillman
Before becoming a megastar in WWE, Stone Cold was a glorified mid-carder in WCW. Soon after he debuted in WCW, Steve Austin joined Paul E. Dangerously's Dangerous Alliance. He later formed a tag team with Brian Pillman and the duo won the Unified NWA and WCW Tag Team titles by defeating Ricky Steamboat and Shane Douglas. Pillman was soon betrayed by Austin and the two went on to battle at Clash of the Champions XXV, which Austin won. The Rattlesnake was fired by Eric Bischoff a while later, as he didn't find Austin 'marketable'.
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Years later in WWE, the two stars got into another heated rivalry, resulting in the infamous "Pillman's got a gun" segment, which was one of the key moments in WWE's move towards more mature programming.