Born in Accra, Osei began his career in 2001 with regional club Echomog, and moved to Suhum Maxbees of the Poly Tank Division One League a year later.
Association football | association football | football (soccer) | National Football League | American football | Ghana | Forward (association football) | college football | Goalkeeper (association football) | Defender (association football) | Football (soccer) | Football in Italy | England national football team | Australian Football League | Australian rules football | Argentina national football team | Canadian Football League | Mexico national football team | Brazil national football team | Arena Football League | the Football League | Football in England | Football League First Division | Italy national football team | Scotland national football team | Germany national football team | Wales national football team | Spain national football team | France national football team | Football League Second Division |
In September 2011, Bechem United were crowned champions of the Poly Tank Division One League Zone 1 and promoted to the 2011–12 season of the Glo Premier League.