Clive Clarke collapsed at half-time during Leicester's Carling Cup tie against Nottingham Forest.
Forest v Leicester abandoned
Leicester City defender Clive Clarke collapsed at half-time during his side's Carling Cup tie against Nottingham Forest.
Clarke, who is on loan at Leicester from Sunderland, collapsed in The Foxes' dressing room shortly after the referee blew for the break.
The restart was delayed by 25 minutes while paramedics attended to Clarke and his team-mates waited anxiously on pitch-side for news.
Clarke, 27, regained consciousness and was taken to hospital but the Leicester players had been shaken by the ordeal.
Forest boss Colin Calderwood and his Leicester counterpart Martin Allen agreed it was in the best interests to postpone the tie.
Calderwood, whose side were winning 1-0 through Junior Agogo's goal, made the announcement to the home crowd.
He said: "We are afraid that due to the serious illness of a Leicester player both clubs have agreed to postpone the match."
Leicester chief executive Tim Davies has confirmed attempts have been made to contact Clarke's family.
"When Clive went into the dressing room he collapsed and was very seriously ill," Davies said.
"He was taken away in an ambulance to hospital. He did offer a few words in the ambulance.
"Our thoughts and prayers are with Clive and his family - we hope he makes a speedy recovery.
"I would like to say a big thank you to Nottingham Forest for dealing with the matter so fast."