J.J. Watt, a defensive end for the Arizona Cardinals, tweeted on Sunday that his heart had been shocked back into rhythm on Thursday following an episode of atrial fibrillation on Wednesday.
Watt also stated that he would participate in Charlotte's game on Sunday against the Carolina Panthers.
After 41 snaps, the Cardinals pass rusher has three total tackles for the game.
On Wednesday, Watt was experiencing health issues, which prompted a doctor to evaluate him.
The shock therapy was administered after the doctor found Watt's heart wasn't beating in sync.
On Sunday, Watt spoke about the procedure following the Cardinals' 26-16 victory and asserted that he had been given the go-ahead to play.
Watt has expressed dissatisfaction with the forthcoming release of his medical records. The only people who knew are people I should trust, Watt told the press.
Watt also complained about the upcoming publication of his medical records. Watt told reporters, "The only individuals who knew are people I should trust.
Due to a calf ailment, Watt did not practise on Wednesday or Thursday and was listed as questionable for Sunday's game.
Atrial fibrillation is an abnormal and frequently very rapid heart rhythm (arrhythmia) that can cause blood clots in the heart.