Forrest Griffin’s retirement was announced Saturday night at the post-fight press conference for UFC 160.

Griffin was noticeable in the stands just feet away from the Octagon throughout the card.

The former UFC light heavyweight champion and winner of The Ultimate Fighter is 33 years old, but suffered a nasty knee injury late last year that took him out of a fight with Phil Davis.

“When Dana says you should retire, you should retire, otherwise you’ll blow your knee out,” said Griffin, who received a standing ovation from the press conference crowd.

Griffin will remain with the UFC in someway – something UFC president Dana White has always stated would be the case after his TUF victory over Stephan Bonnar.