The Ravens hired Frederick Kail, the same artist who sculpted the Johnny Unitas statue at M&T Bank Stadium in 2002.
"He's well into it," Bisciotti said at the NFL owners meetings Monday. "I haven't seen any progress pictures, but the original stuff was just off the charts. We think we'll have it done before the season starts."
Bisciotti wouldn't reveal details about how the Lewis statue will look. Lewis will either be depicted in a linebacker pose or a celebratory pose. The Ravens left the decision up to Lewis.
The Ravens announced plans to put up a statue in Lewis' honor just four days after the team won its second Super Bowl title. Lewis retired after that Super Bowl victory, ending the career of the best player in Ravens history.
"I think he set himself apart in Baltimore sports history," Bisciotti said of Lewis last year.