ORCHARD PARK, N.Y. (AP) – Ben Roethlisberger and the Steelers’ new-look offense overcame a slow start, Ulysees Gilbert returned a blocked punt 9 yards for a touchdown and Pittsburgh rallied to a season-opening 23-16 win over the Buffalo Bills. Down 10-0, the Steelers scored on each of their first four possessions of the second half, with Roethlisberger putting Pittsburgh ahead for good by lobbing a 5-yard touchdown pass to Diontae Johnson in the left corner of the end zone. Josh Allen and the Bills produced a dud following an offseason in which many pegged the defending AFC East champs as Super Bowl contenders.