Zachary M. Bogosian (born July 15, 1990) is an American professional ice hockey defenseman currently playing for the Buffalo Sabres. Bogosian attended Cushing Academy in Massachusetts before he joined the Peterborough Petes of the Ontario Hockey League (OHL) in 2006. He played two seasons in the OHL, and was nominated for the Red Tilson Trophy as the league's most outstanding player in his second season. Bogosian was regarded as a complete, physical defenseman who could contribute on both offense and defense; he was rated as one of the top players heading into the 2008 NHL Entry Draft, where the Atlanta Thrashers selected him third overall. He signed a contract with the team a few weeks after the draft and began the season with the Thrashers, though he missed several weeks of his rookie year due to injury. In his second season, he tied a team record for goals by a defenseman. Bogosian first played in an international tournament when he joined the American national team at the 2009 IIHF World Championship.