Australia Test batsman Phillip Hughes has died aged 25, two days after being struck on the top of the neck by a ball during a domestic match in Sydney.
Australia team doctor Peter Brukner said he passed away in hospital, never regaining consciousness.
Hughes, who also played for Hampshire, Middlesex and Worcestershire, was hit by a delivery from bowler Sean Abbott.
"It's an understatement to say we're completely devastated," said Cricket Australia boss James Sutherland.
"The word tragedy gets used too often in sport, but this freak accident is a real life tragedy."
"We appreciate all the support we have received from family, friends, players, Cricket Australia and the general public.
"Cricket was Phillip's life and we as a family shared that love of the game with him. We would like to thank all the medical and nursing staff at St Vincent's Hospital and Cricket New South Wales medical staff for their great efforts with Phillip. We love you."
A clearly emotional Clarke then stood up and left the room.
Hughes, batting for South Australia, collapsed face first on the ground after being hit by a bouncer from 22-year-old Abbott during a Sheffield Shield game against New South Wales.
Hughes had been wearing a helmet but the ball struck him at the top of the neck, causing the injury.
He had CPR and mouth-to-mouth resuscitation at the ground before being taken to St Vincent's Hospital, where he had a 90-minute operation to relieve pressure on his brain.