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The 1966–67 Football League Cup was the seventh season of the Football League Cup, a knockout competition for England's top 92 football clubs. The competition started on 23 August 1966 and ended with the final on 4 March 1967. This was the first season during which Arsenal, Tottenham Hotspur, and Wolverhampton participated in the League Cup; Everton and Liverpool were the only League teams that did not compete.
Match dates and results were initially drawn from Soccerbase, and they were later checked against Rothmans Football Yearbook 1970–71.
Calendar
Of the 90 teams, 38 received a bye to the second round (teams ranked 1st–40th in the 1965–66 Football League, excluding 2 teams that did not compete) and the other 52 played in the first round. The semi-finals were two-legged.
Round
Main date
Fixtures
Clubs
New entries this round
Original
Replays
First Round
24 August 1966
26
10
90 → 64
52 (teams ranked 19th–22nd in Second Division; all Third and Fourth Division)
Second Round
14 September 1966
32
11
64 → 32
38 (all First Division, except those teams that did not enter; teams ranked 1st–18th in Second Division)