Joey O'Brien withdraws from Republic of Ireland squad through injury

West Ham United defender Joey O'Brien has been forced to withdraw from the Republic of Ireland squad through injury.

The 28-year-old met up with his international teammates on Sunday, but he is now due to return to Upton Park after suffering a knee problem.

O'Brien has made five senior appearances for the Republic of Ireland since his debut in 2006.

Ireland welcome Oman to Dublin for a friendly on Wednesday before flying out to Georgia for their opening European Championship qualifier on Sunday.