Liverpool owner John Henry has been hospitalised after an incident on his yacht in Boston.
Henry, who also owns the Boston Red Sox baseball team, was taken to Massachusetts General Hospital in an ambulance.
The 62-year-old was reportedly seen leaving the €32m (£25.5m) boat with a neck brace after being treated by paramedics.
His club Liverpool take on Everton in the Merseyside derby at lunchtime on Saturday.