Boston College will host Louisville in a matchup of Atlantic Coast Conference teams hoping to return to the winning track on Friday in Chestnut Hill, Mass. The Eagles (4-3, 1-2 ACC) have had peaks and valleys throughout their back-to-back losses at Virginia and Virginia Tech, including turning the ball over three times in each. In last Thursday's game, which followed a bye week, Bill O'Brien's team trailed 28-0 before a second-half comeback by the Thomas Castellanos-led offense fell short. "These are tough games, right? All of them are tough," O'Brien said. "We have to limit our mistakes. ... If we can limit our turnovers, penalties, stop the run better, obviously we'll be in these games.