Six foot six in the Rangers goal, Okala was nicknamed Iroko after the forest's tallest tree, and his saves against AS Police of Senegal in the Cup Winners' Cup quarter-final carried Enugu towards their first African trophy. In 1978 he became the first goalkeeper voted African Footballer of the Year, and he collected a winner's medal at the 1980 Nations Cup in Lagos, that Cup Winners' Cup with Rangers in 1977, All-Africa Games gold in 1973 and 59 Nigeria caps. Career record: 51 caps and 0 goals for Nigeria; club career at Enugu Rangers.
| 1971–1980 | Enugu Rangers |
| Nigeria | 51 caps, 0 goals |
Nigeria legends whose careers overlapped Okala's
One rank above: Chidi Nwanu at #27.
One rank below: Thompson Oliha at #29.
Nigeria's editorial top five: Jay-Jay Okocha · Nwankwo Kanu · Rashidi Yekini · Finidi George · Sunday Oliseh.