Auston Matthews and James van Riemsdyk paid tribute Monday to USA Hockey executive Jim Johannson, who died in his sleep on Sunday at age 53. “He had such a positive impact on USA Hockey. He went above and beyond what he had to.” Johannson held many roles with USA Hockey, and was the general manager of the U.S. Olympic team. Matthews and van Riemsdyk got to know him through the U.S. national development program and the world under-18, world junior and world championships. Van Riemsdyk was an Olympian under Johannson, and was also a family friend.