Earlier this month, Richardson told ESPN.com that he'll use Jim Brown's repeated remarks about him as motivation but he doesn't need any explanation from the Hall of Fame running back.
"He has his own thoughts. That’s him being him," Richardson said. "I have no problem with it. I just wish the best of luck for him whatever he’s doing in life."
Browns president Mike Holmgren is attempting to reconcile the team's relationship with one of its best players, saying last week that the Browns welcome him "with open arms."
Brown has been very critical of the Browns since he was removed as an advisor to the team and has sounded off recently on Richardson, the third overall pick of the 2012 draft. He described Richardson as "ordinary" and said he didn't see "anything outstanding about him."
"I laugh at the situation," Richardson said. "You don’t know me from spic to span. But he’s Jim Brown. He’s done a lot here and I haven’t done anything yet. I have a lot to accomplish and big shoes to fill. When it comes down to it, I have to work and make sure I make him a believer. I haven’t done anything yet."