If the two aces are on as expected, it will come down to the bullpens. The Yanks would be heavy favorites if the Sox again throw Richards, Ottavino, Hernandez. But Cora used five starters in Game 162, and the guy with better stuff than any of them is Houck (he got a loss in NY's sweep last week, but gave up zero hits). Houck could be the literal wild card.
Re. the absences of DJ and JD; the batting champ didn't have a great year, but is still clutch, and a bigger loss to New York than the RBI champ who tripped over the bag jogging to RF.
The underrated key to the game that favors the visitors is that Sanchez and his squatting skills are riding the pine. If Sanchez pinch hits late and has to go behind the plate in a close game, the home team is golden -- especially if it goes extra innings.