Former UFC lightweight champions BJ Penn and Frankie Edgar are set to coach opposite one another on The Ultimate Fighter 19 in 2014.

After that, the former opponents will square off – but this time, the bout takes place at featherweight, Edgar’s new home.

Since defeating Penn twice, Edgar has dropped the UFC lightweight title and the subsequent rematch. Penn, though, feels he won both fights and is the uncrowned UFC champ.

“I really do wish this fight was at 155. Nothing to do with the weight, it’s just I really feel that Frankie hasn’t lost yet,” he said, during an appearance on BJ Penn Radio recently. “He’s right up there, and I feel everybody says I’m supposed to be the greatest at lightweight. Frankie beat me twice. Frankie never really lost yet.

“Maybe who walks out of that ring will be one of the best lightweights of all-time. We’re going to find out.”

Penn hasn’t had his hand raised since a 2010 knockout over former UFC champion Matt Hughes. Edgar, meanwhile, rebounded from a three-fight losing skid by defeating Charles Oliveira earlier this year.