The Chicago Bears announced Monday they have signed cornerback LeQuan Lewis. Chicago has signed cornerback LeQuan Lewis Monday. Chicago Bears running back Kahlil Bell is tripped up by Tennessee Titans cornerback LeQuan Lewis in the third quarter of an NFL football preseason game Saturday, Aug. 27, 2011, in Nashville, Tenn. The Bears have made a move to improve their secondary. Lewis was an undrafted free agent out of Arizona State in 2011 and spent time with the Tennessee Titans in training camp before being released during final cuts. The 23-year-old Los Angeles native was an undrafted free agent from Arizona State who was signed by the Titans in 2011.