Peter Schmuck, columnist: Despite the fact that the Ravens clinched their greatest regular-season accomplishment in franchise history by claiming the No. 1 AFC playoff seed, it will be hard remember this day fondly if stalwart running back and team leader Mark Ingram II ends up being lost for the remainder of the season and postseason. It certainly looked that way when he went down untouched and grabbed at his lower left calf. If that was an Achilles tendon injury, it’s very bad news. Mark Andrews also hobbled off, and his status was unknown at the end of the game. If his ankle isn’t seriously damaged, he’ll have three weeks to get better before the Ravens play their first postseason game. On the happier side, the Ravens didn’t let a very slow start in the first half keep them from extending their franchise-record winning streak to 11. Lamar Jackson was his typical all-everything self, throwing three touchdown passes and leading the team in rushing yards. The Steelers await, but they probably won’t see much of him next week.