She sustained a concussion and spent the night in a local hospital.

There was no mark on her, but she might have sustained a concussion.

He sustained a concussion in the first quarter and did not return.

His career ended after he sustained a concussion during a fight on the ice in 1997.

He sustained a concussion, but if he's quiet for several days, he'll be okay.

I got a blow on the head and probably sustained a minor concussion.

He sustained a concussion and was also thought to have a broken jaw.

Stevens said this was probably not the first time in his career that he had sustained a concussion.

He sustained a concussion with just a few weeks left in the season and missed three games of the playoffs.

The police said she sustained a concussion and a cut on the back of her head that required 12 stitches.