Arizona Cardinals' J.J. Watt tweets he's set to play days after having heart procedure

CHARLOTTE, N.C. — Arizona Cardinals defensive lineman J.J. Watt tweeted Sunday, hours before he was set to play against the Carolina Panthers, that he went into atrial fibrillation on Wednesday and had to have his heart shocked back into rhythm Thursday.

He sent the tweet at 12:14 p.m. ET. The Cardinals were set to kick off at 4:05 p.m. ET.

Watt, who is in his second season with the Cardinals, said he will play against Carolina.

I was just told somebody leaked some personal information about me and it's going to be reported on today. I went into A-Fib on Wednesday, had my heart shocked back into rhythm on Thursday and I'm playing today. That's it.

Watt said he tweeted the information because the news of his heart condition and the procedure was leaked.

Watt missed practice Wednesday and Thursday for what the Cardinals listed as «calf/illness» on their injury report.

According to the Cleveland Clinic, atrial fibrillation is «an irregular heart rhythm that begins in your heart's upper chambers.»