NFL betting predictions: Dolphins, Cardinals highlight our three best Christmas Day bets

The NFL is complementing the usual bevy of Christmas Day NBA games with a tripleheader that starts in broad daylight in South Beach and ends well after dark in the Arizona desert. The teams are all struggling, but it's the NFL on Christmas and sportsbooks are open for business.

Denver's quarterback Russell Wilson is expected back this week. Denver's defense ranks third in the league in points allowed. Arizona has lost four straight games and has just one victory and two point-spread covers since Oct. 23. The Cardinals are down to their third-string quarterback Trace McSorley and head into Saturday night's game against Tampa Bay without starting defensive end Zach Allen. Tampa hasn't covered a point spread since Sept. 18.  Tampa hasn’t won a game by more than six points since September 18 either. It's been a long time since Tampa covered more that a touchdown.