Through a season of turmoil, Derek Carr performed at his best. So the Las Vegas Raiders have given the veteran quarterback a three-year contract extension. The extension is worth $121.5 million, a person with knowledge of the deal told The Associated Press, speaking Wednesday on condition of anonymity. Despite all of the issues with the Raiders last season, including the resignation of coach Jon Gruden, Carr helped them to the playoffs as a wild card in the tough AFC West. He threw for a career-high 4,804 yards and 23 touchdowns as Las Vegas went 10-7 before losing at Cincinnati in the postseason.