10 WWE superstars you probably didn't know competed in NXT

#4 CM Punk teamed up with the WWE NXT Champion to have a tag team match

CM Punk is one of the most controversial WWE superstars in history. Punk had both good and bad days and held several of the company’s top titles along the way.

In November 2011, Punk began his third reign as the WWE Champion. This reign was one of the longest championship reigns of the modern era. During that time, Punk headed over to WWE NXT in August 2012.

In a dark match, Punk took on Cesaro in a singles match. Cesaro’s tag team partner, Kassius Ohno, watched on from ringside as "The Swiss Superman" came close to losing the match. Ohno interfered and this brought out the NXT Champion at the time, Seth Rollins.

Rollins and Punk ended up teaming together for a match against Cesaro and Ohno, much to delight of the NXT Universe. At the end of it all, Punk and Rollins hit their finishers on both opponents and pinned them at the same time to pick up the victory.

The duo stood tall to end the night after a monumental dark match. This was the only time Punk competed inside the NXT ring.