Big Island mixed martial artist B.J. Penn, a former owner of the Ultimate Fighting Championship lightweight and welterweight belts, said Sunday that he will retire, announcing the decision after a loss to Frankie Edgar in Las Vegas, the UFC confirmed on its website.
"Frankie did a great job," the 35-year-old Penn was quoted as saying after The Ultimate Fighter finale at the Mandalay Bay Events Center, his first bout since December 2012.
"I should not have come back. Much respect to Frankie."
Penn was stopped in the third round, and has lost his last three fights. He finishes his UFC career with a 16-10-2 record.
Edgar (16-4-1) improved to 3-0 in his career against Penn. The other two wins were in lightweight championship fights in 2010.
"It's a bittersweet victory," Edgar said on ufc.com.