The story cited one source in saying that Rosenhaus made multiple loans to Jackson between November 2009 and March 2012. Rosenhaus declined comment for the story, and Jackson could not be reached for comment.
Jackson confirmed to NFL.com's Albert Breer on Tuesday that he had fired Rosenhaus recently. The superagent negotiated a five-year, $51 million contract for Jackson last March.
Jackson said he has yet to make up his mind on his new representation, despite reports that he will sign with Jay Z's Roc Nation Sports.
"I've been hearing about that a lot," he told Breer. "But Jay Z is obviously a big-time person in the music industry. So as far as football, I'm really not too familiar with what he's got going so far. But I've been hearing a lot of things, I have a lot of big options, haven't figured out what I want to do yet because, you know, this is a big year for myself and my team, so whatever the decision will be. I'll let you guys know as soon as possible, but a decision hasn't been made yet."