Former UFC light heavyweight champion Forrest Griffin regrets never asking for a bout inside the Octagon against ex-Pride titleholder Wanderlei Silva, despite sparring with him in the gym frequently.

Check out what Griffin said in a question and answer session in London Friday prior to the weigh-ins for UFC Fight Night 37, per Fighters Only.

"We fought so many times in the gym in sparring and never got paid for it," Griffin recalled. "It would have been nice to see some dollars."

“It’s always nice to fight your friends,” he later added.

Griffin, the original winner of The Ultimate Fighter in April 2005, compiled a 10-5 record in his over seven-year tenure for the world’s premiere mixed martial arts organization.

The Brazilian jiu-jitsu black belt, better known for his scrappy striking, retired in July 2012 amidst a 3-1 stretch, winning a trilogy bout with Tito Ortiz at UFC 148.

The fan-friendly Griffin was indicted to the UFC Hall of Fame along with old TUF rival Stephan Bonnar on July 6.

Griffin racked up quality wins over Ortiz (twice), Bonnar (twice), Rich Franklin, Mauricio “Shogun” Rua and Quinton “Rampage” Jackson during his fight career.

The 34-year-old is still a big fight fan, evident by his Twitter account, and can usually be seen in attendance at major UFC events.