Crossman played three years of junior hockey with the OHL's Ottawa 67's. In 1979-80, he was part of a strong offensive unit that included the likes of scoring champ Jim Fox and Yvan Joly. He was the beneficiary of many assists on those goals, picking up 96 to go along with his 20 goals for an impressive 116 points in 66 games. The 96 assists were an OHL record for a defenseman until Bryan Fogarty of the Niagara Falls Thunder eclipsed the mark in 1988-89, when he had 108.
In 1980-81, Crossman joined the Chicago Blackhawks for nine games, with the balance of his season being played with their minor-league affiliate in New Brunswick. He remained with the Blackhawks for another two seasons, becoming a regular with the club and appearing in 70 and 80 games, respectively.
On June 8, 1983, Crossman and Chicago's second-round draft pick in 1984, which turned out to be Scott Mellanby, were sent to the Philadelphia Flyers for rugged defenseman Behn Wilson. It was during his time in Philadelphia that most fans will remember Crossman, who was part of two Stanley Cup finalists in 1985 and 1987. He says those were the two most enjoyable years as a pro, but also provided the biggest disappointment, losing in the finals both times to the Edmonton Oilers. Crossman particularly stood out in the 1987 playoffs, where he had 18 points in 26 playoff games.
Crossman played one more season for the Flyers before being sent to the Los Angeles Kings for Jay Wells in September 1988. He played in California for just one season before going to the New York Islanders, where he appeared for a little over a year before being sent to the Hartford Whalers in a deal that saw Ray Ferraro head to New York. However, before the 1990-91 season was done, Crossman was on the move again, this time to the Detroit Red Wings. Crossman also made a brief stop with the Tampa Bay Lightning, where he set a team record by scoring six points on three goals and three assists in a game against the New York Islanders. He moved on to his final NHL destination, St. Louis, where he appeared in 50 games in 1993-94. Crossman played a couple more seasons of minor pro hockey before retiring in the 1995-96 season as a member of the Baltimore Bandits of the AHL.
Following a 16-year professional playing career, Crossman went on to coach the UHL's Port Huron Border Cats for one season in 1997-98.
Courtesy of the Hockey Hall of Fame