Bernard Hopkins prepped for his fight at the DSG Boxing Gym in Philadelphia. (Jonathan Newton / The Washington Post)

Bernard Hopkins has plans. Big plans. At 49, he is one victory away from becoming the undisputed light-heavyweight champion of the world and, after that, he has none other than Floyd Mayweather Jr. in his sights.

“I want to be the undisputed champion by the end of this year. Between now and January 2015, let’s do it,” Hopkins, who will turn 50 in January, said (via AFP). “I set out to be the best in the light-heavyweight division. I’m thirsty for that like I was at middleweight.”

At 49, Bernard Hopkins has cemented his place in boxing history while making millions. So why does he continue to fight? The Post's Gabe Silverman rides with Hopkins back to the Philadelphia projects where he grew up to try and figure out the answer. (Gabe Silverman/The Washington Post)

Hopkins became the oldest major world champion in boxing history, winning a split decision Saturday over Beibut Shumenov. Next he hopes to fight Adonis Stevenson, then, if all goes according to plan, he’d like to fight Mayweather in the middleweight class.

“I’ll give anybody a run for their money. If they are unbeaten I will take their 0, give them their first loss,” Hopkins said. “I could make 165, 168 [pounds] real comfortably.”

Even in a sport known for hype and outlandish proclamations, the fight would be huge. Mayweather, with a 45-0 record, is closing in on the hallowed 49-0 career mark of the late Rocky Marciano, a boxing legend.

“If I do a fight, it would be one of the biggest in the world. We will do it in a stadium somewhere,” Hopkins said. “After I become the undisputed light-heavyweight champion of the world, if there was one big fight out there, I know what I would call it — 50-50. He wants to pass Marciano. He wants to get to 50 and I am 50. That would be huge.”

Related: How Bernard Hopkins is fighting age — and winning