Fulham's clash with Blackpool was temporarily suspended due to a medical emergency in the stands at Craven Cottage.
The fan who was taken ill is now their way to hospital and play in the Championship match has resumed.
The west Londoners were leading 1-0 in the 16th minute when referee Peter Bankes was alerted to an incident in the Hammersmith End.
Both club's medical teams rushed to stand to help, while the two sets of players were taken off the field of play.
Fulham tweeted an update on the situation around half an hour after incident occurred: "The supporter being attended to is being transferred to the hospital.
"We’re sending our thoughts and best wishes for a full and speedy recovery. We will provide an update on the situation as soon as we have further information."
Aleksander Mitrovic had given the hosts an early lead, scoring his 28th goal of the season after a well-worked move.
Mitrovic was returning from injury for the game, having been out of action for almost a fortnight.
The Cottagers were beaten by Blackpool earlier in the season in one of just four defeats this campaign, as they sit top of the Championship table.
But Tangerines boss Nigel Critchley was still wary of Marco Silva's side pre-match.
“We know Fulham away, with the form they’re in, this is the most difficult game you face in this division. You can’t get a tougher fixture than this,” Critchley said.
“They’ve won the most games in the division, they’ve lost the least, they’re a Premier League team in waiting really.
“We know the task we’re facing, but we’ve won back-to-back games and we’ve beaten them once already this season.”
Silva, on the other hand, praised Blackpool for their performance at Bloomfield Road in September and the Fulham manager admitted: "It was a tough match for us and not a good enough performance from us.
"It came from an international break. We didn't prepare in the same conditions as normal. Blackpool blocked our game well, but we didn't perform out our best level."
Meanwhile, Oldham's clash with Rochdale was paused for a similar reason and the players at Boundary Park were also taken off the pitch.
And a third incident occurred shortly before half-time at Wycombe, with visitors MK Dons in the lead.
Oldham gave an update just over 10 minutes after the incident by tweeting: "Our best wishes go with the Latics fan concerned.
"A heartfelt thank you to supporters who alerted it quickly to the stewards and medical team in the Main Stand Upper. We will try to provide a further update but he is back responsive and receiving treatment."
Rochdale added: "Applause rings out around Boundary Park as it appears, thankfully, that the supporter is in a stable condition."