Nick Diaz may have been sidelined for more than four years now, but he still remains to be a big name in the sport. And for Georges St-Pierre, the elder Diaz brother could’ve been a much bigger superstar.

In a recent interview with FanSided, the retired UFC superstar spoke about his former adversary, and how Nick could’ve fared against today’s top welterweights.

“I think just it’s sad to see a guy like him waste his best years. Stylistically it would have been a nightmare for a guy like Tyron Woodley.”

Diaz was slated for a comeback at UFC 235 in March against Jorge Masvidal, but the fight never pushed through.

Nonetheless, St-Pierre believes the 36-year-old Diaz could have a lot left in him.

“He’s one of the best fighters that I fought. Who knows, maybe his best years are to come.”

Diaz last fought at UFC 183 in 2015, where he lost to Anderson Silva via decision. He was then slapped with a lengthy suspension due to a positive drug test for marijuana metabolites.