O'Brien concern for Ireland
Joey O'Brien was expected to leave the Republic of Ireland squad on Sunday after undergoing a scan on a hamstring injury.
The West Ham defender was sent for tests on Saturday after reporting a problem during the warm-up ahead of the previous night's 3-0 friendly victory over Latvia.
Midfielder Andy Reid returned to his club, Nottingham Forest, on Saturday with a similar injury.
However, central defender Sean St Ledger, who was also a doubt, was expected to remain with the party which was scheduled to fly to Poland on Sunday afternoon.
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