Everton say that Seamus Coleman will have to undergo a fitness test ahead of Sunday's Premier League clash with Sunderland.
The Irish international is nursing an Achilles injury at the moment, which makes him a doubt for the trip the Stadium of Light.
The news will be a big concern for Ireland manager Martin O'Neill, who will be hoping that his first-choice full-back will be available for next week's Euro 2016 clash with Scotland in Glasgow.
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