Harris was a full-back and began his career with Chelsea, for whom he played 70 league games in his first stint with the club.
He joined Coventry in 1964, spending two years there, before briefly returning to Chelsea again, where he played in their 1967 FA Cup final loss to Tottenham Hotspur.
[citation needed] He moved to Queens Park Rangers as a replacement for Jim Langley in 1967, and made his debut in August that year against Portsmouth.
Harris was a member of the 1967–68 side that won promotion to the First Division for the first time in the club's history.
[2] After retiring from playing, Harris went on to be assistant manager to Venables at Crystal Palace, QPR (helping the team reach the FA Cup Final in 1982 and win promotion to the First Division in 1982–83) and FC Barcelona (winning La Liga in 1984–85 and reaching the 1986 European Cup Final).