He wore #7 playing right wing for the Toronto Maple Leafs.
McDonald played 7 seasons with Toronto from 1973-74 to 1979.
McDonald was easily recognizable by the enormous red mustache he wore. A great shot had him scoring 37 or more goals, and 40 or more assists 4 seasons in a row from 1975-76 to 1978-79.
In March of 1974 McDonald scored a hat trick against the New York Rangers in a 7-3 win at Maple Leaf Gardens.
In October of 1976 McDonald scored a hat trick against the Philadelphia Flyers, in a 5-5 tie game at M.L.G.
In December of 1976 another 3 goal game against the Los Angeles Kings in a 6-3 win at M.L.G.
And in October of 1977 he had a hat trick against the Detroit Red Wings in a 7-4 win at M.L.G.
After going 14 months since his last hat trick McDonald had two in back to back games on March 31 and April 1 1979, against Minnesota in a 6-2 win at M.L.G. and in Buffalo in a 6-3 win.
He played for team Canada in the 1976 Canada Cup, assisting on fellow Toronto Maple Leaf player Darryl Sittler`s series winning goal in overtime, to defeat Czechoslovakia 5-4.
McDonald also played in the Challenge Cup series in 1979 against the Soviet National team, Canada lost to the Soviets 2 games to 1.
In a preliminary playoff series in April of 1977 McDonald scored 3 goals and 2 assists in a third game 5-2 win against the Pittsburgh Penguins, that advanced the Leafs to play the next round of Quarter finals against Philadelphia, in the fourth game of that best of seven series April 17,1977, McDonald scored 4 goals and an assist in a losing effort 6-5, the Leafs lost the series 4 games to 2.
A memorable moment for Toronto fans was the 1978 playoffs in which McDonald scored an overtime goal in game seven against the New York Islanders to advance the Leafs into the semi finals.
McDonald was traded from Toronto in 1979 to the Colorado Rockies. The trade was a shock to Leaf fans and players as McDonald had 15 goals and 30 points at the time of the trade, the previous season 1978-79 he had produced 43 goals and 85 points, so scoring was not the problem, but the G.M. of Toronto at the time was Punch Imlach who had an ongoing feud with the Captain of the Leafs team Darryl Sittler, and to spite Sittler, Imlach traded Sittler`s winger and friend.
McDonald served as Captain with Colorado and as Captain with the Calgary Flames winning a Stanley Cup with Calgary in 1989.
Five of the seven seasons McDonald played in Toronto were with playoffs.