"Ilkka was a true friend and loyal member of the Flyers," Flyers president Paul Holmgren said. "He gave a great deal of his time, effort and talents to the organization in several capacities as a player and long-time scout to bring this franchise success on and off the ice.
"Most important to all that knew him, he was a great person, a loving husband, father and grandfather. His presence and friendship will be deeply missed by all that knew him. Our thoughts and prayers are with his wife of over 35 years, Carina, his sons Niklas and Tomas, as well as Tomas' wife, Maija and their children Peter and Matilda."
Sinisalo signed with the Flyers on Feb. 14, 1981, and joined them as a 23-year-old rookie in 1981-82. He had 73 points (36 goals, 37 assists) in the 1984-85 season, helping the Flyers reach the Stanley Cup Final, where they were defeated by the Edmonton Oilers. He had an NHL career high 76 points (39 goals, 37 assists) the following season, but he was limited to 42 games in 1986-87, when the Flyers again lost in the Final to the Oilers.