|Date of birth||7 April 1951|
|Original team(s)||Assumption College|
|Height||197 cm (6 ft 6 in)|
|Weight||99 kg (218 lb)|
|1976–1978||North Melbourne||51 (18)|
1 Playing statistics correct to the end of 1982.
|Sources: AFL Tables, AustralianFootball.com|
Keenan played as a 197 cm ruckman and was a solid marker of the ball as well as having a good drop punt. He was recruited from Assumption College by Melbourne for whom he made his VFL debut in 1970.
After playing 101 games for Melbourne in six seasons he signed for North Melbourne, a club who had just won the premiership. Apart from having the chance to play regular finals football he had also been tempted to the club by the coach, Ron Barassi. He was North Melbourne's first ruckman in their 1977 premiership team but was unable to play in another grand final the following season as he had been suspended; he is depicted being reported by an umpire in Jamie Cooper's painting the Game That Made Australia, commissioned by the AFL in 2008 to celebrate the 150th anniversary of the sport.
The 1979 and 1980 seasons were spent with Essendon before he returned to his original team, Melbourne, who had also acquired his premiership coach, Ron Barassi. After retiring as a player he became an Australian rules media commentator. For several years, Keenan was a regular every Friday with Red Symons on 774 ABC Melbourne providing footy and racing tips