Istanbul knew him as Deniz Uygar, the name he took with Turkish citizenship, and Fenerbahçe played him 191 times at centre-back, where he also scored 19 goals. He won Olympic gold with Nigeria in Atlanta in 1996, the Africa Cup of Nations in 1994, played at the 1994 and 1998 World Cups, and took Turkish league titles in 1996 and 2001 after two Danish championships with Brøndby. Career record: 46 caps and 2 goals for Nigeria; club career at Brøndby IF, Fenerbahçe Istanbul, İstanbulspor A.Ş..
| 1987–1987 | Esan |
| 1988–1990 | Heartland |
| 1990–1993 | Brøndby IF |
| 1993–2002 | Fenerbahçe Istanbul |
| 2002–2006 | İstanbulspor A.Ş. |
| 2007–2008 | Ocean Boys |
| 2008–2009 | Bayelsa United |
| Nigeria | 46 caps, 2 goals |
Nigeria legends whose careers overlapped Okechukwu's
One rank above: Stephen Keshi at #14.
One rank below: Yakubu Aiyegbeni at #16.
Nigeria's editorial top five: Jay-Jay Okocha · Nwankwo Kanu · Rashidi Yekini · Finidi George · Sunday Oliseh.