Ken Shamrock and Kevin “Kimbo Slice” Ferguson admit there are two primary reasons they’ve agreed to an upcoming Bellator MMA fight: It’s a chance to have fun, and it’s also a chance to make a little money.

The two vets, who have both been out of the MMA cage since 2010, recently agreed to make a return on June 20 at “Bellator 138: Unfinished Business,” which airs on Spike TV from Scottrade Center in St. Louis.

Slice (4-2), the former bareknuckle brawler and Youtube sensation who parlayed that notoriety into stints with EliteXC and the UFC, was actually supposed to fight Shamrock (28-15-2), a UFC Hall of Famer and MMA trailblazer, in 2010. But after Shamrock suffered a cut just prior to the CBS-televised EliteXC headliner, Seth Petruzelli stepped in as a replacement and pulled off the upset over Slice.

“It arguably could have been the greatest ratings deliverer in the history of mixed martial arts TV ratings,” Bellator President Scott Coker said on Friday during a press conference with Slice and Shamrock, who will now fight five years later.

Asked why he accepted the fight, Shamrock gave an impassioned speech about why, exactly, MMA is his idea of a good time – even if fans mock or complain about the matchup.

“Over the years, I’ve been training and keeping myself in shape and staying fit,” Shamrock, 51, said. “I’ve earned the right to be able to fight for fun, and I think a lot of people have a hard time understanding that I don’t want to go fishing, and I don’t want to go hunting.

“I like being in the room with a bunch of dudes getting ready for a fight, training, building camaraderie, patting each other on the shoulder, preparing for a fight, walking into the ring, competing, winning, walking out, and enjoying a good time together. To me, that’s the best thing in life. I love that.”

Check out the full press conference above.

And for more on “Bellator 138: Unfinished Business,” check out the MMA Rumors section of the site.