David John Semenko (July 12, 1957 – June 29, 2017) was a Canadian professional ice hockey centre that played 2 seasons in the WHA and 10 seasons in the National Hockey League (NHL) for the Edmonton Oilers, Hartford Whalers and Toronto Maple Leafs organizations. He won back-to-back Stanley Cups in 1984 and 1985 with the Edmonton Oilers. Fans nicknamed Semenko "Cementhead" even though his official team nickname was always "Sammy".