A referee's heart attack during a football game was captured on video Friday night as Seffner Christian Academy played Windermere Prep at Strawberry Crest High School.
The video shows Robert Singer signaling for the game to continue, and then he loses his balance and falls.
Singer was taken from the field in an ambulance, received a stent at South Florida Baptist Hospital and is doing better, said Andy Holmes, the athletic director of Seffner Christian.
"It was dead quiet," Holmes said of the scene after people realized what was happening. "It was quiet for the longest time."
The players responded by trying to alert the emergency crew that was on duty at Strawberry Crest.
"The team ran to the ambulance that was over in the corner of the stadium. The PA announcer gave his name and said keep him in your prayers."
Holmes said it was the second time in three years his team as seen a medical emergency during a game. The last was when a player from Daytona Beach had a helmet-to-helmet hit, and lay on the field unresponsive for 5 minutes before being transported by ambulance, he said.