He was healthy for the game. Got a stinger during the game. Came out of the game. Is now healthy for the next game.
He's not on the injury report, and despite peoples' view on the Patriot manipulation of the injury report, while they do perhaps screw around with Questionable/Probable a little, I don't think anyone can show me an example of the Patriots completely leaving OFF a player from the report who was 50/50 to play or anything. From what I've heard locally, he's okay.
That doesn't make him a good start though - two games now he's been limited because of injuries he's sustained in the middle of the games. With his age, that's not good.
Also, his game, as you know, is pounding the ball, and if the Patriots fall behind to Cincy quickly on Sunday, Dillon will be utilized less than Maroney will be in the later half of the game.