Favorites went 9-7 against the spread in NFL Week 17, with the Bengals, Seahawks and Patriots all covering easily as at least seven-point favorites. But six underdogs won outright, including stunning victories by the Vikings on Christmas Day and the Falcons on Monday Night Football. In NFL Week 18, there are a lot of teams lacking motivation facing squads with a lot to play for. There are seven Week 18 NFL games with spreads of at least a touchdown, including a pair of AFC South matchups. The Jacksonville Jaguars (12-4) are trying to clinch the South ******* le and still hold out some hope of