It looked like Lacy was ready for a big game when he took his first carry for ten yards, but his day would come to an end at the conclusion of that run, less than two minutes into the game.
Notorious head hunting safety Brandon Meriweather flew into the play as Lacy was stumbling forward for some extra yards, and Meriweather put his head down and cracked Lacy right in the side of the helmet. Taking some time to rise back to his feet, it was immediately obvious that Lacy suffered a concussion on the play, and he was promptly ruled out for the rest of the game. His status for Week 3 is unknown.
Take a look at the hit and make the decision yourself - was this a dirty play? (I apologize for not being able to find a full-speed clip of the play).
What this comes down to is that, whether or not Meriweather intended to make helmet-to-helmet contact, he lowered the crown of his helmet and lunged high at an opponent - that is exactly what the NFL is trying to avoid. Meriweather shockingly avoided a personal foul call for his knockout blow, but will likely face strong disciplinary action from the league this week.
Karma had its way with Meriweather in the second quarter. Lacy's replacement at running back, James Starks, was taking the ball up the sidelines for a 20-yard run when Meriweather came in like a missile - once again leading with his helmet. Though there was no penalty for this play either, the two players smashed heads together, but this time it was Starks who gloated afterwards and Meriweather who lay motionless on the ground. He was eventually able to get up under his own power, but Meriweather was diagnosed with a concussion.
For a look at the play, click here.
You never want to see a player go down with an injury - especially an injury to the head - but this has been a long time coming for Meriweather. I can remember back to the day he tried to decapitate Todd Heap of the Ravens - he's been at this for years. With the NFL making player safety a priority with an emphasis on concussion prevention, they are bound to be infuriated with Meriweather's constantly reckless play.