Broncos’ rush defense faces stiffest challenge yet: ‘We’d better stop the (freaking) run’

Getting your Trinity Audio player ready... Jamar Cain knows the number, though he’d prefer not to. A year ago, Denver entered the playoffs having not allowed more than 147 rushing yards to any team in the regular season. They were riding high off a franchise-record 63 sacks. Then the wild-card round began. Buffalo ran the ball at will against the Broncos. Ran it to the tune of 210 yards in a 31-7 victory. “I was trying to forget they ran for 210 on us,” Cain, Denver’s defensive line coach, told The Post this week. The reason it comes up in conversation is obvious. The Broncos and Bills play again, this time in the divisional round, on Saturday at Empower Field. Denver is once again salty...