How old were they?

Mario Thyer

C · Born September 29, 1966

Age in each postseason series

1. 1990 Division semifinals (April 4, 1990), North Stars vs Blackhawks 3–4: 23 years, 187 days

Age in each season

1. 1989-90 (North Stars): 23 years, 2 days to 23 years, 213 days