Buffalo Bills player Damar Hamlin suffered a cardiac arrest during Monday Night football while playing against the Cincinnati Bengals.

The incident happened with 5:58 minutes left in the first quarter. Hamlin made a tackle on Bengals receiver, Tee Higgins, stood up, stepped two steps backward, and suddenly collapsed. The medics gave Hamlin CPR for nine minutes. They also used a AED on Hamlin. Fifteen minutes passed between when he collapsed and when he was taken off the field.

Damar Hamlin is a 2nd year safety out of the University of Pittsburgh. He grew up in McKees Rocks, PA. He is 24 years old, and went to Central Catholic High School.

A little after 10 p.m., ESPN announced that the game was suspended for the night. Hamlin was taken to a Cincinnati Hospital, and was diagnosed with a cardiac arrest. Later that night, his business representative tweeted that his vitals were back to normal and he was put to sleep for a breathing tube in his throat.

Hamlin remains in the Intensive Care Unit. The NFL world is saddened by this incident.