The Chargers’ front office and coaching staff smiled when Illinois defensive lineman Corey Liuget remained available at No. 18 overall in April’s draft. Now they’ll get to see him put on a Chargers uniform following the agreement to a four-year contract Thursday morning. “We’re very happy that Corey’s contract is done. It’s time to go to work,” GM A.J. Smith said. The Chargers envision his 6-foot-2, 300-pound body lining up at defensive end and competing for starting position. Liuget made 12.5 tackles for loss, 4.5 sacks and 10 quarterback hurries as a junior, earning second-team All-Big Ten honors.