Playing Career

Ferguson's playing career began as an amateur with Queen's Park, where he made his debut as a striker aged 16.He described his first match as a "nightmare",[but scored Queen's Park's goal in a 2–1 defeat against Stranraer. Perhaps his most notable game for Queen's Park was the 7–1 defeat away to Queen of the South on Boxing Day 1959 when ex-England international Ivor Broadis scored four of the Queen of the South goals. Ferguson was the solitary Queen's Park goalscorer.

Despite scoring 20 goals in his 31 games for Queen's Park, he could not command a regular place in the side and moved to St. Johnstone in 1960. Although he continued to score regularly at St. Johnstone, he was still unable to command a regular place and regularly requested transfers. Ferguson was out of favour at the club and he even considered emigrating to Canada,however St. Johnstone's failure to sign a forward led the manager to select Ferguson for a match against Rangers, in which he scored a hat trick in a surprise victory. Dunfermline signed him the following summer (1964), and Ferguson became a full-time professional footballer.

The following season (1964–65), Dunfermline were strong challengers for the Scottish League and reached the Scottish Cup Final, but Ferguson was dropped for the final after a poor performance in a league game against St. Johnstone. Dunfermline lost the final 3–2 to Celtic, then failed to win the League by one point. The 1965–66 season saw Ferguson notch up 45 goals in 51 games for Dunfermline. Along with Joe McBride of Celtic, he was the top goalscorer in the Scottish League with 31 goals.

He then joined Rangers for £65,000, then a record fee for a transfer between two Scottish clubs. He was blamed for a goal that they conceded in the 1969 Scottish Cup Final,

in a match in which he was designated to mark Celtic captain, Billy McNeill, and was subsequently forced to play for the club's junior side instead of for the first team. According to his brother, Ferguson was so upset by the experience that he threw his losers' medal away. There have been claims that he suffered discrimination at Rangers after his marriage to a Catholic, Cathy Holding, but Ferguson himself makes it clear in his autobiography that Rangers knew of his wife's religion when he joined the club and that he left the club very reluctantly, due to the fall-out from his alleged cup final mistake.

The following October, Nottingham Forest wanted to sign Ferguson, but his wife was not keen on moving to England at that time so he went to Falkirk instead. He was promoted to player-coach there, but when John Prentice became manager he removed Ferguson's coaching responsibilities. Ferguson responded by requesting a transfer and moved to Ayr United, where he finished his playing career in 1974.