Manchester: England captain Eoin Morgan retired hurt with concussion after he was hit on the head by a Mitchell Starc bouncer in the final one-day international against Australia at Old Trafford.
The left-hander was struck on the back of the head in the seventh over and needed support from fielder George Bailey before sitting on the ground and receiving treatment.
England later announced that Morgan would play no further part in the game. Fellow batsman James Taylor will captain the side in the field.
The hosts had already slipped to 22-3 in the sixth over in the deciding game when Morgan was replaced by Jonny Bairstow.
The blow to Morgan, who was wearing a helmet, caused immediate concern for the visiting players, less than a year after the death of Phillip Hughes, the Australia batsman who passed away after being struck on the neck by a bouncer.
The fielders immediately went to help Morgan, while a shaken Starc was comforted by captain Steve Smith, coach Darren Lehmann, team-mate John Hastings and Morgan's batting partner Ben Stokes.