Arizona Cardinals defensive end J.J. Watt revealed on Twitter Sunday that he had a heart issue earlier in the week:
JJ WattI was just told somebody leaked some personal information about me and it’s going to be reported on today.<br><br>I went into A-Fib on Wednesday, had my heart shocked back into rhythm on Thursday and I’m playing today.<br><br>That’s it.
A-Fib stands for atrial fibrillation, which is an arrhythmia featuring an irregular heart rhythm.
Watt was initially listed as questionable for Sunday's game against the Carolina Panthers due to a calf issue, but Ian Rapoport of NFL Network reported he was expected to play.