Motherwell captain Phil O'Donnell has died after collapsing towards the end of his side's Scottish Premier League game against Dundee United.
The 35-year-old midfielder fell to the ground just as he was about to be replaced with Marc Fitzpatrick near the end of Motherwell's 5-3 victory.
O'Donnell was treated for around five minutes on the field before being taken to a waiting ambulance.
But his death was later confirmed by Well chairman Bill Dickie.
Motherwell manager Mark McGhee had spoken briefly to the press after the game before going to hospital to find out how the skipper was.
We took Clarkson off because he got a fright from the nature of the collapse
Motherwell manager Mark McGhee
"He's had some sort of collapse," he said.
McGhee said O'Donnell's substitution had been "an absolute coincidence" before his sudden collapse.
"We just felt we would save him a bit for Wednesday," said the manager.
O'Donnell's nephew, David Clarkson, was substituted moments later after scoring two goals in the Scottish Premier League match.
McGhee said: "We took Clarkson off because he got a fright from the nature of the collapse.
"A few of the boys got a fright."
A news conference has been called at Wishaw General Hospital, which will be addressed by chief executive Ian Stillie.
source BBC sport