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Dublin , Ireland - 7 June 2016; Republic of Ireland manager Martin O'Neill during squad training at the National Sports Campus in Abbotstown, Dublin. (Photo By Seb Daly/Sportsfile via Getty Images)

Dublin , Ireland - 7 June 2016; Republic of Ireland manager Martin O'Neill during squad training at the National Sports Campus in Abbotstown, Dublin. (Photo By Seb Daly/Sportsfile via Getty Images)