Leyton Orient have snapped up young Birmingham defender Sam Oji on a month-long loan deal.

The 21-year-old centre-half, who has also had loan spells with Doncaster and Bristol Rovers, goes straight into Martin Ling's squad for the Carling Cup clash with Cardiff.

"I need to get games under my belt in order to progress and this month at Leyton Orient will allow me to do that," he told the club's official website.

"I'm just looking to get out on the pitch and show the manager what I can do. We'll see where that takes us and if I do well, maybe I can stay a little longer."