The Cologne captain fell to the turf off the ball and appeared to lose consciousness, prompting a swift response from the pitchside medical staff.

The 31-year-old Turk appeared to be receiving heart massage treatment before leaving the pitch on a stretcher.

Cologne goalkeeper Faryd Mondragon and coach Christoph Daum were clearly shaken by the incident as both appeared overcome with emotion for a period.

There was brief a question mark over whether the match would resume, but a thumbs up from a member of the medical team on the sideline and a stadium announcement assured fans and players that Umit's condition was not as bad as first feared.