PHILADELPHIA The Boston Celtics came into Friday's game against Philadelphia down a man, and they'll leave it down another one.
Mickael Pietrus, who was filling in for injured Ray Allen (left ankle), suffered a neck injury in the second quarter and was unable to return.
The 6-foot-6 wing forward was driving to the basket when he was fouled by Lou Williams with 5:08 to play in the half.
As he tumbled to the ground, replays showed that he landed on the base of his neck.
Pietrus was sprawled out on the floor, motionless for several seconds.
When he didn't spring to his feet quickly, teammates quickly alerted the medical staff that something wasn't right.
Surrounded by teammates and medical personnel, it was soon determined that he would need a neck brace and be carted off on a stretcher.
Team officials have initially described his injury as a questionable head injury that would require him to be sent to a nearby hospital.
Seeing Pietrus on the floor, and then carted off on a stretcher, had a hauntingly familiar feel about it.
It was last season in which Celtics wing Marquis Daniels suffered a similar-looking injury that sidelined him for the remainder of the season.
Pittsburgh Steelers wideout Antonio Brown posted an apology on social media Tuesday night for his Facebook Live video that has caused a stir over the last few days.
"I let my emotions and genuine excitement get the best of me, and I wanted to share that moment with our fans," said Brown in a statement on his Twitter. ""It was wrong of me to do, against team and NFL policy, and I have apologized to Coach Tomlin and my teammates for my actions.
"I'm sorry to them for letting it become a distraction and something that they've had to answer questions about while we're preparing for a big game on Sunday."
Steelers coach Mike Tomlin said on Tuesday that he has “absolutely no worries on the video's effect" on Sunday's game against the Patriots, but it was "selfish and inconsiderate" of his star wide receiver.
Brown could still be fined for violating the league's social-media policy. The policy states that players, coaches and football operations personnel are banned from using social media on game days 90 minutes before kickoff, during games, and before "traditional media interviews."
Former NFL player Dan Koppen says the team locker room after a win is a sacred place and that Steelers WR Antonio Brown should know not to be posting on Facebook.