Lewan was initially scheduled for court appearance on Monday.
Attorney John Shea, who represents Lewan, said he asked for the adjournment.
"We need more time to finish the investigation," Shea said today.
Lewan, a first-round pick out of Michigan, is facing three misdemeanor charges -- one count of aggravated assault, two counts of assault and battery -- stemming from a Dec. 1 incident in Ann Arbor.
Lewan has said repeatedly he was merely breaking up a fight the night he was charged in an incident while in college. His ex-girlfriend and the alleged victim say otherwise.
"I was completely breaking things up," Lewan said last month shortly after the Titans drafted him. "I did push guys to get everything out of the way. I never struck a man (with a) closed fist or anything of that nature. The thing is, I explained to (the Titans) everything and told them the truth, that's what it was. I'm happy that (the Titans) believed me."
According to a 36-page Ann Arbor police report obtained earlier this month by The Associated Press, James Hughes of Denver said Lewan hit him in the face, and Alexandra Dileo, Lewan's ex-girlfriend whose brother was a teammate of Lewan's, said "Taylor is lying" about his actions.