As sick as Andrew Lawrence felt, the last thing he needed was more basketball. So the College of Charleston guard made sure he ended things as soon as possible.Lawrence was battling a stomach virus that left him nauseous and weak. Still, he scored 17 of 22 points in the second half to rally the Cougars to a 71-67 victory over Boston College on Sunday and claim seventh place in the Charleston Classic."I'm still pretty sick," Lawrence said afterward. "I'm about to go back and take a nap right now because I'm not feeling too good. But I'm glad I came out here today and we could get this win.The Cougars (2-2) avoided going 0-3 on their home floor, using a 19-8 run to start the second half and take control. Lawrence began the surge with two three-point plays. Anthony Thomas had two straight driving layups as Charleston took the lead for good.Cougars coach Doug Wojcik ended a personal four-game losing streak in the tournament, dropping the final two in 2011 as Tulsa's coach before starting 0-2 here this time. He said the entire team was relieved to get a victory on their home floor."It is a little bit of a monkey off our backs," he said. "We had a little mosh pit in the locker room to celebrate the win. It's a good feeling."Boston College (1-3) got within a bucket several times down the stretch, the last on Olivier Hanlan's foul shots with 28 seconds to go. But Lawrence made four of six free throws to keep the Cougars out front.Anthony Stitt had 14 points and Thomas 10 for Charleston.Patrick Heckmann led the Eagles with 18 points. Boston College made seven 3-pointers the first half but was just 3-of-15 after that.Eagles coach Steve Donahue was glad his team fought hard throughout, but said it was College of Charleston's second-half execution that stung his team. "They took advantage of some matchups we had inside with foul trouble, injuries and things like that," he said. "I thought they deserved to win."Boston College and College of Charleston were looking for a feel-good finish to the tournament. The Eagles lost by double-digits to No. 16 Baylor and Dayton in their first two games while the home-standing Cougars were beaten by St. John's and Auburn.Boston College took control early with Lonnie Jackson hitting a pair of 3-pointers on the way to 19-12 lead midway through the first half. The Cougars rallied to cut things to 23-22 before the Eagles took off again.Heckmann had two 3-pointers and Jackson added his third of the half to move in front 34-27 before the Cougars began their decisive stretch.Both teams came into the game shorthanded. Boston College was without sophomore Ryan Anderson, who was out with an ankle injury. Anderson scored 39 points in the first two tournament games.Charleston was without junior starter Trent Wiedeman, also out with a bad ankle. He had scored 18 points in the Cougars' two losses.