Mickael Pietrus suffered a very scary injury on Friday night in a game against the Philadelphia 76ers. Pietrus landed awkwardly on his head and neck and was carted off the court. He was convulsing, vomiting and spitting up blood, according to what was seen on the broadcast through various reports. That generally implies a very serious head and neck injury.

Needless to say, the Boston Celtics are treating this one with care and have posted an update via Twitter in regards to his status:

Pietrus update: Suffered a "questionable closed head injury" (concussion). Had X-ray, CT scan and will get MRI. Staying overnight in Philly.

— Boston Celtics (@celtics) March 24, 2012

That's a possible concussion, not a guaranteed concussion at this point. There will be more information on what exactly happened to make Pietrus react the way he did in the near future. These tests aren't just being performed on his head either, as Pietrus didn't seem to actually hit his head if you're watching the video -- he lands directly on his tailbone and spine and then goes to clutch his head.

Celtics coach Doc Rivers commented on what happened and it reflects what everyone else is saying at this point, via SB Nation Boston, originating from ESPN:

"It looked awful," he said. "I saw it immediately -- I didn't think he hit his head, I wasn't sure, but I just saw his neck snap, so you knew that was bad. Obviously, he was throwing up on the floor, so that wasn't very good either."

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