Blackburn Rovers' 1-0 win over Middlesbrough was temporarily suspended due to a medical incident in the crowd.
With the match goalless, the referee stopped play in the 64th minute to allow medics to attend to the matter at Ewood Park.
After a nine-minute stoppage, play resumed as Blackburn took to Twitter to provide an update.
They confirmed the supporter involved was 'conscious and breathing' as play resumed.
Rovers also wished the individual a 'full and speedy recovery'.
Speaking after the match, goalscorer Sam Gallagher said: "Best wishes to whoever it was in the crowd."
And Rovers manager Tony Mowbray added: "It was mentioned in the dressing room. We will find out as soon as I've finished here.
"This club is a very caring community and we will be doing everything to help him and his family.
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"Hopefully we get some good news quickly."
Shortly after play resumed Blackburn took the lead as Gallagher put the home side in front.
Rovers are currently in a battle with the likes of Fulham, Bournemouth, QPR and West Brom for an automatic promotion spot in the Championship.
And the win over Boro puts them in second place, three points clear of Bournemouth in third.
Blackburn have not been in the Premier League since being relegated at the end of the 2011-12 campaign.
Meanwhile, seventh place Middlesbrough are fighting for a play-off spot.
Under manager Chris Wilder, they had won four games in a row coming into the clash with Blackburn - but could do nothing to avoid defeat in Lancashire.
Wilder has been hired by Boro to replicate what he achieved with Sheffield United when he guided them to a ninth place finish in the Prem.
Middlesbrough have spent just one season in the top flight over the past 13 years - in the 2016-17 campaign when they managed just 28 points.
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