Cardinals linebacker J.J. Russell was released from the hospital and has re-joined the team at training camp, the team announced Thursday night.
All tests were negative.
Russell was carted off the field after colliding with rookie Kitan Crawford in a 7-on-7 drill in practice. He was transported to the hospital to be evaluated for a head and neck injury.
Russell signed a one-year, $1.1 million deal with the Cardinals in May after three seasons in Tampa.
He set career highs last season with 16 games played, three starts, 25 tackles and two passes defensed.
