Cleveland Browns wide receiver Elijah Moore appeared to twitch involuntarily on the ground before being ruled out of Thursday night's NFL game against the Jets due to a concussion.
Moore appeared to be face down on the ground after being tackled by Jets No. 57 CJ Mosely with one minute, 44 seconds left in the second quarter of Thursday night's game.
Moore had a section of grass from the field in his grill and as the camera filmed him lying on his back, his arms and hands appeared to fly frighteningly into the air.
His worried teammates waved to the sideline to bring the coaches onto the field, while Mosely appeared to cautiously walk toward his opponent and circle around him.
The 23-year-old later had to leave the game due to a concussion.
Elijah Moore appeared to twitch involuntarily after being thrown facedown on the ground
The incident sparked a number of concerned reactions from doctors watching the game.
Dr. Evan Jefferies, a California-based physical therapy doctor, wrote on X: “Unfortunately, these are involuntary movements due to Elijah Moore's brain injury.”
Jeff Mueller, another physical therapy doctor, wrote, “Involuntary limb movements occur when there is a disruption between the brain and muscles.”
“Every concussion is different, but Moore could be out for several weeks.”
An extended absence for Moore would be a major blow to him and his team with the playoffs looming.
The Browns' 37:20 win on Thursday secured their place in the playoffs.
The team has 10 days until its final game of the regular season on the road to the Cincinnati Bengals.
The Wild Card round of the playoffs begins January 13th.