Career
After spending a year with Traktor Chelyabinsk of the Commonwealth of Independent States /Russian League, Tertyshny was selected in the sixth round with the Flyers" #132 overall draft pick in the 1995 National Hockey League Entry Draft. He spent three more seasons with Chelyabinsk before joining the Philadelphia Flyers in the 1998-1999 season. On July 23, 1999, during the offseason after his rookie National Hockey League campaign, Tertyshny was on a boating trip to Okanagan Lake in British Columbia with two players from the Flyers" minor-league affiliate Philadelphia Phantoms, Francis Belanger and Mikhail Chernov, when a freak accident caused him to suffer fatal injuries.
The boat hit a wave and caused him to fall forward overboard.
The boat ran over him and its propeller slashed his neck and his jugular vein.