Dan 'The Beast' Severn retires

Dan "The Beast" Severn, a member of the UFC Hall of Fame, announced his retirement from mixed martial arts Tuesday.

The 54-year-old heavyweight ends his professional MMA career with a record of 101-19-7.

"Father Time is telling me it is time to let go," Severn said on his website. "I have learned over time that the only constant factor is change. It will happen and there is nothing we can do to stop it, so smile, hold on, and embrace it for all that it has to offer and hopefully you, too, will have the ride of your life."

Severn made his mixed martial arts debut on Dec. 16, 1994, at UFC 4. Then 36, he competed three times at the event, winning two fights.

He defeated Anthony Macias and Marcus Bossett by rear-naked choke in the first round. But in his third bout of the day, Royce Gracie submitted him in the first round with a triangle choke.

Overall, Severn made 13 appearances under the UFC banner. He was 9-4 with the promotion.

In his final UFC appearance, on Sept. 22, 2000, Severn was submitted via strikes by Pedro Rizzo in the first round.

Severn leaves MMA on a winning note, defeating Alex Roman by unanimous decision on April 28 at a BlueBlood MMA-promoted event in Davenport, Iowa.

For the past few years, however, Severn campaigned for rematches against Gracie, Ken Shamrock and Mark Coleman. None of those rematch requests materialized.

His inability to secure a rematch with any of those fighters played a major part in Severn's decision to retire from MMA.

"I was attempting to secure my own self-directed retirement tour in the last couple of years, reaching out to only three people ... Mark Coleman, Ken Shamrock and Royce Gracie," Severn said. "I spoke to two of them directly (Mark and Ken) and through representative (MGR) for Royce.

"It seems as though these matches will not take place for whatever reasons and my life now goes on to the next chapter."

While he will no longer compete in mixed martial arts, Severn’s fighting days are not over. He will continue competing in professional wrestling in 2013.

Severn, who was inducted into the UFC Hall of Fame in April 2005, will remain involved in MMA as an instructor and commentator.