5 Superstars who failed at other sports but succeeded in wrestling

#2 Roman Reigns

Reigns developed his finisher from years of playing football

These days the Big Dog's entrance enlists a huge reaction from the crowd, as soon as the first note hits the speakers the arena is flooded with cheers and jeers.

Whether he is receiving a hero's welcome or being booed out of the building, everyone knows who Reigns is, and everyone has an opinion on him. While every WWE fan knows the name Roman Reigns, the name rings hollow in the NFL.

It's not hard to tell from watching one of his devastating spears that Reigns, aka Joe Anoa'i, was once an aspiring football player. Reigns played college football at Georgia Tech where he recorded six and a half sacks. He was undrafted in 2007 and failed to make the final 53-man roster for the Minnesota Vikings or Jacksonville Jaguars.

Following in the footsteps of his cousin Dwayne "The Rock" Johnson, Reigns played one season for the Edmonton Eskimos in the Canadian Football League. When his football career didn't pan out, the young Reigns followed his family's footsteps to the WWE, where the Anoa'i family are wrestling royalty.

Reigns' accomplishments are too abundant to run down, but he is a three-time WWE World Heavyweight Champion, as well as a former Tag Team and United States Champion. "The Guy" is also one of only two guys to defeat the Undertaker at WrestleMania. The other being...