Andre Smith signed a contract Sunday with the Bengals, ending an impasse that dragged on a month into the preseason, according to an Associated Press report. The Bengals originally planned to have Smith start at right tackle, but he has missed all three preseason games. ?He has a lot of work to do, but he knows the challenge ahead of him to make an impact on our team as soon as possible,? coach Marvin Lewis said in a statement released as practice began.