Gregory William Hawgood is a Canadian former professional ice hockey defenceman who played in the National Hockey League (NHL) with the Boston Bruins, Edmonton Oilers, Philadelphia Flyers, Florida Panthers, Pittsburgh Penguins, San Jose Sharks, Vancouver Canucks and Dallas Stars. Hawgood was born in Edmonton, Alberta.

The Punch-up in Piestany was a bench-clearing brawl between Canada and the Soviet Union during the final game of the 1987 World Junior Ice Hockey Championships in Piešťany, Czechoslovakia on January 4, 1987. The incident resulted in the ejection of both teams, and while the Soviets had already been eliminated from medal contention, the disqualification cost Canada a medal – potentially the gold. The brawl is famous for officials having turned off the arena lights in a desperate attempt to end the 20-minute melee. Much of the blame was placed on Norwegian referee Hans Rønning, who had been selected for the game based on his perceived neutrality rather than experience.