The early-season departures of goalscorers John O'Mara and Bobby Ross and 15 consecutive away league defeats led to Brentford's relegation straight back to the Fourth Division.

[1] The Brentford youth team was also reactivated after being disbanded due to the budget cuts of 1967, with Kevin Harding, Richard Poole and Graham Pearce being taken on as apprentices.

[2] 10 days later, forward John O'Mara, the previous season's Gallagher's Divisional Footballer Of The Year, was sold to Third Division rivals Blackburn Rovers for a club-record £50,000 fee.

[1] By early October 1972, Brentford were in the bottom-six of the Third Division, but a profit of nearly £80,000 from the first eight league matches of the season and the £50,000 from the sale of John O'Mara allowed manager Frank Blunstone to pay £10,000 for Carlisle United forward Stan Webb.

[1] By mid-December, Blunstone had just 12 fit players available and despite spending over a further £25,000 on attackers Roger Cross, Barry Salvage and Andy Woon, Brentford's slide towards relegation continued through the early months of 1973.