ROCK HILL, S.C. — Xavier Cooks scored 19 points, grabbed 13 rebounds, and Winthrop came back from a halftime deficit to beat UNC-Asheville 76-73 on Thursday night. Winthrop (14-4, 6-1 Big South) trailed by five at halftime but fought back to open a seven-point lead, 60-53, midway through the second half. The Bulldogs answered, storming