Roy Jones Jr., 46, to fight March 6

Former four-division titleholder Roy Jones Jr., the former longtime pound-for-pound king, still has his eye on winning a title in a fifth weight class even though he turned 46 last month and has many calling for his retirement.

But that has not stopped Jones, who will meet Willie Williams in a cruiserweight fight on March 6 at the Cabarrus Arena & Events Center in Concord, North Carolina. Jones said the purpose of the fight, and perhaps another one this summer, is to prepare for what he hopes will be a fall fight against longtime cruiserweight titleholder Marco Huck of Germany.

"What I am doing is staying busy because Marco Huck said he will fight me in the fall," Jones told ESPN.com on Tuesday. "I ain't no spring chicken and I need to be properly prepared to fight Huck. If I get that fight it will probably be my last stab at (a world title) and then I'd call it a day. But I want to make sure I am ready as can be."

Jones said he has twice spoken with Huck in the past two months and that Huck said he would fight him.

"He said he would love to give me the opportunity," Jones said. "He is going to fight a fight and I'm gonna fight once or twice and make sure I am right and ready to fight. He said he would fight me in the fall, toward the end of the year. He's the champ so I need to wait until he's ready. But I want to make sure I am ready."

Since 2011, Jones (59-8, 42 KOs), of Pensacola, Florida, has won five fights in a row, but against lower-level opponents, all but one in Eastern Europe and Russia. Jones' winning streak followed a three-fight losing streak -- to Danny Green by first-round knockout, Bernard Hopkins by lopsided decision and Denis Lebedev by brutal 10th-round knockout -- that had many calling for his retirement.

The 36-year-old Williams (14-8, 4 KOs), of Baltimore, is a club fighter who turned pro in 2006. He is coming off a four-round decision win in November against Michael Gutrick, who was 3-7 going into the fight. That win followed back-to-back losses, including one by first-round knockout.

Jones won world titles at middleweight, super middleweight, light heavyweight and heavyweight, but skipped over cruiserweight.

Jones, who is an HBO commentator and also trains fighters, said he decided to pursue a title shot in the 200-pound division because he needed a goal in order to motivate himself to continue boxing.

"If you don't have a goal you can't fight," Jones said. "So I decided to go for the cruiserweight title. That's my new goal and has been for a little bit. I won a lot of titles but I never won the cruiserweight title or tried to win it. Now I have a goal. Without a goal, there ain't no sense in fighting."

Jones acknowledged that Huck is a far superior opponent than the recent fighters he has faced.

"I know Marco Huck is a totally different animal," Jones said. "That's why I want him. If I beat Marco Huck I've done something. Marco Huck is my man. I don't pay no mind to the critics."

Huck (38-2-1, 26 KOs), 30, won his world title in 2009 and has made 13 defenses. He also fought Alexander Povetkin for a heavyweight belt in 2012 and lost by highly controversial decision.