A scary few moments at the Canadian Tire Centre on Monday night as the Senators faced the Florida Panthers and not just on the ice.
With just over 3:30 left in the first period, the game was put on hold for a medical emergency in the stands.
According to paramedics, a 77-year-old man suffered a heart attack.
Two CTC staff members and a bystander went into action when the man collapsed, grabbing an AED and doing CPR.
Paramedics stationed at the game arrived moments later and took over, getting a pulse back and rushing him to the hospital.
The man was unconscious but had a pulse when he arrived at the Ottawa Hospital.
He was listed in critical condition.
While the time left in the first period of the game was pushed to the second, there was another delay when Florida's Vincent Trocheck twisted his right leg and needed a stretcher.