Steelers quarterback Ben Roethlisberger had his right foot in a walking boot at his postgame news conference Sunday following the Steelers’ 30-12 victory against the Miami Dolphins in an AFC wild-card game at Heinz Field. Roethlisberger said the injury occurred late in the fourth quarter when he was intercepted by Xavien Howard. Dolphins defensive end Cameron Wake dragged Roethlisberger down from behind as he released the ball.

“Don’t know anything yet but we’ll find out soon hopefully,” Roethlisberger said.

Roethlisberger promised to play Sunday when the Steelers travel to Kansas City for an AFC divisional round playoff game against the Chiefs. The game is at 1 p.m. Sunday at Arrowhead Stadium.

Roethlisberger said he was not surprised head coach Mike Tomlin left him in the game in the fourth quarter when the Steelers led by 24 and 18 points.

“I don’t know if they had a conversation about staying in or out, but I love being out there with the guys,” he said.