Boxing: Jones after Johnson's light heavyweight belt

MEMPHIS, Tenn. -- Roy Jones Jr. sees his fight with Glen Johnson as a new beginning.

"It starts right here," Jones said of Saturday's fight, adding he has no thoughts of retirement at age 35.

"I'm too good for that," he said.

Jones is going after Johnson's IBF light heavyweight title after losing his own WBC crown in May to Antonio Tarver.

After building one of the best records of his generation, Jones went down ingloriously to a crashing left from Tarver.

But he sought to brush that off Thursday at a news conference for the fight with Johnson at Memphis' FedExForum, the new $250 million home of the NBA's Grizzlies.

"You can knock me down, but you'd better put me cold asleep because when I get up I'm coming back," Jones said.