Tillman had three interceptions in an injury-plagued 2013.
New Bucs coach Lovie Smith reportedly asked Brian Urlacher to assist at training camp.
Mike Dunleavy hit a three-pointer with 5.8 seconds left and Joakim Noah came up with a block on the other end, leading the Chicago Bulls to a 91-90 comeback victory over the Milwaukee Bucks on Friday night.
“He’s not a perfect player. We like the fit. We like what he brings to us intangibly. We wanted to get better up front. He’s a seasoned player.”