He turned professional with the "Saints" in April 1980 and helped the club to reach the FA Cup Semi-finals and to achieve a second-place finish in the First Division in 1983–84.
When he was a schoolboy, his family moved to Waltham Cross, Hertfordshire, where he played for Cheshunt's youth teams while also attending Southampton's London Selection Centre.
In November 1982, he eventually claimed the number 3 shirt as his own, ousting Steve Baker, where he formed a partnership with England international Mick Mills.
In 1983 McMenemy decided to adopt the continental idea of a sweeper, and Agboola's "quick and alert defending"[6] ideally suited him to the role, to such good effect that in 1983–84 Southampton recorded their highest-ever final position, second place behind Liverpool, as well as reaching the FA Cup Semi-final at Highbury where they lost 1–0 to Everton in extra time.
[8] He initially found it difficult to hold down a regular first-team place as Sunderland struggled in vain to avoid relegation from the First Division at the end of his first season.
Agboola joined Frank Burrows's Swansea City in November 1991 and made 28 appearances before retiring from professional football.
The "Swans" battled against relegation in 1991–92, before reaching the play-offs in 1992–93, losing to West Bromwich Albion at the semi-final stage.
[7] He was first selected by coach Clemens Westerhof for Nigeria whilst with Sunderland, appearing in an Africa Cup of Nations qualifying match against Ghana on 13 April 1991[10] thus becoming one of the first non-Nigerian born players to represent his native country.
[8] The "Super Eagles" qualified for the 1992 Africa Cup of Nations in Senegal and made it to the semi-finals, where Ghana defeated them; Nigeria then beat Cameroon in the third place play-off.