[12] Doctors believed he would never play hockey again, and that the significant nerve damage Macoun suffered meant he had only a fifty-fifty chance of ever regaining use in his injured arm.

[1] He added nine points in 22 playoff games as the Flames went on to beat the Montreal Canadiens in the final to win the franchise's first Stanley Cup championship.

[5] He made his second appearance with the national team; Macoun scored a goal and an assist for the fourth placed Canadians at the 1990 World Championship.

The team needed a draw between Sweden and the Soviet Union in the final game of the tournament to win gold, but after the Swedes emerged victorious, Canada settled for the silver medal.

LaFontaine suffered a broken jaw and lost several teeth, however Macoun was not suspended for the incident as the league ruled there had been no intent to injure.

[17] Midway through the season, Macoun was involved in a blockbuster trade centred on Doug Gilmour that was, at the time, the largest in NHL history.

[18] On January 2, 1992, Calgary sent Gilmour, Macoun, Ric Nattress, Rick Wamsley and Kent Manderville to the Toronto Maple Leafs in exchange for Gary Leeman, Craig Berube, Alexander Godynyuk, Michel Petit and Jeff Reese.

[18] Though Toronto missed the playoffs in 1991–92, they won more games than they lost in 1992–93 for the first time since 1978–79 and reached the Western Conference Final in both 1993 and 1994.

They were tasked with stopping their opponents' top players and preventing opposition chances at the end of close games.

[1] Recognizing his defensive performance, the Maple Leafs signed the 34-year-old Macoun to a two-year contract extension, with an option year, that paid him $1 million per season.

[20] The struggles by the Maple Leafs as a team, and by Macoun individually, early in the 1996–97 season led to his name being associated with trade rumours as Toronto contemplated moving one of their older defencemen.

[22] However, with Toronto situated outside of a playoff spot late in the season, the Maple Leafs traded Macoun to the Detroit Red Wings on March 24, 1998, in exchange for a fourth round selection at the 1998 NHL Entry Draft.

[1] He won his second career Stanley Cup after Detroit swept the best-of-seven final and eliminated the Washington Capitals in four games.

By 1992, he had become a partner in a real estate firm and though he was playing for the Maple Leafs at the time, he returned to the Alberta city in his off-seasons to gain his realtors license.