5 Superstars who appeared for rival promotions while still under contract with WWE

#1. Robbie (The Highlanders) - TNA Live 2008

The Highlanders are a mostly forgettable tag team. They were on WWE TV from 2006 to 2008. Robbie and Rory McAllister were seen as cousins, and they were featured on the WWE RAW roster.

When Rory suffered an injury in February 2008, Robbie was left in a position where he wasn't needed on WWE TV for several months. He made sparse appearances on WWE RAW, so it was obvious that his career was going downhill. Robbie decided to take matters into his own hands and do something drastic.

During a TNA event in March 2008, Robbie was seen in the audience. He was also verbally recognized on camera, though it was by his real name. Apparently, a WWE official called Robbie and told him to immediately leave the building. He was later released from the company in August 2008.

The following year, Robbie admitted in an interview that he wished he could take it back. The appearance accelerated the downfall of his WWE career, as WWE likely felt betrayed by his actions.

It could have been a subconscious thing that I did it because (WWE) weren't using us. Stuff like that. But it was just a dumb thing on my part. I wish I could take it back, but you never can. So now I just have to look and go, 'Oh well."

Robbie Highlander was seemingly seen as an example to any other wrestlers who thought about making this kind of decision, it appears to have worked.