Manchester United captain Nemanja Vidic has been released from hospital after he suffered concussion in Sunday's 1-0 Premier League win against Arsenal.
Vidic, 32, was substituted shortly before half-time after colliding with United goalkeeper David De Gea.
The ex-Serbia defender, who got to his feet, was taken to hospital for an examination before returning home.
"Nemanja Vidic has been released from hospital after suffering concussion," said a United statement.
Vidic was left dazed after being caught on the head by De Gea as the Spaniard punched clear a high ball.
He is not likely to play again until 24 November when United visit Cardiff in the Premier League following the international break.
United have not put a timescale on a return to training for Vidic, who quit playing for Serbia in October 2011.
His injury came less than a week after Tottenham were criticised for allowing goalkeeper Hugo Lloris to continue playing after he was knocked out against Everton.
Brain injury charity Headway said Spurs were guilty of an "irresponsible and cavalier attitude".