Former Newcastle United goalkeeper Pavel Srníček is in a 'critical' condition in hospital after suffering a suspected heart attack.
The 49-year-old is reported to have collapsed while running in the town of Bohumín, on the border of the Czech Republic with Poland.
The former Czech Republic international's condition is described as 'critical’.
Newcastle United tweeted: "Our best wishes go to @PavelSrnicekUK, who has been taken to hospital today. Get well soon, Pav."
His agent, Steve Wraith said on Twitter: "Hi, I can confirm that Pavel has suffered cardiac arrest whilst running and is in critical condition in hospital. #nufc
"Pavel was running last night and his heart stopped he was like that for 20 minutes then rushed to hospital he is an induced coma until Wed.
"Then they will see if his heart is stronger and if so bring him out of the coma.....no one knows if his brain has been to starved of oxygen."
Srníček played professional football as a goalkeeper between 1990 and 2007, with most of his time at Newcastle United.
He played 150 times for the Magpies between 1991 and 1998.
Srníček, who won 49 international caps for Czech Republic, became a cult hero as part Keven of Keegan’s ‘Entertainers’ side, returning for a short spell in the 2006-07 season.
He also played for Sheffield Wednesday, Portsmouth and West Ham United as well as spending time in Italy and Portugal.
Srníček was in the North East last week to promote his autobiography, "Pavel is a Geordie".