Referees’ assessor Eddie Wolstenholme collapsed in the tunnel before Burnley’s Premier League game with Newcastle, leading kick-off to be delayed by 30 minutes.
The former Premier League referee was taken to hospital in a conscious state.
He refereed the “Battle of Bramall Lane” in 2002, when Sheffield United-West Brom was abandoned as the hosts had only six players left on the pitch.
Burnley host Newcastle with both sides one point above the relegation zone.
Follow live coverage of the match here.