10 Biggest Heat Moments From WWE’s Most Popular Wrestlers

5. Eddie Guerrero Turns On Rey

A line-blurring tweener by nature, Eddie Guerrero was one of the few wrestlers effective in equal parts as a fun-loving baby-face and an intense, no-nonsense heel. For evidence of the latter, look no further than his 2005 feud with one-time friend Rey Mysterio, whose relationship with Latino Heat hit a sour patch when Guerrero suplexed him onto some steel steps on an episode of SmackDown (we've all been there).

It was always going to take something special to turn the fans against Guerrero - whose popularity peaked the year prior when he walked out of WrestleMania XX, alongside Chris Benoit, as WWE Champion - and this was it. Mercilessly beating up on Rey Mysterio, totally unfazed by the ensuing chorus of jeers. A proper heel move.