O'Shea can play on the right-hand side of midfield or as a striker, and scored 10 goals for Galway last season.
The 20-year-old has scored one goal in three appearances for the Irish Under-21 side.
Real Madrid take on neighbours Atletico in the Champions League final on Saturday night.
Real Madrid face neighbours Atletico in the Champions League final on Saturday looking to secure their 11th European crown.
Manchester United sacked Louis van Gaal as manager this week, with the team's style of play under the Dutchman reportedly key to the decision.
Jose Mourinho has been named as Manchester United's new manager - an appointment that unites a man whose handling of
The rivalry between Jose Mourinho and Pep Guardiola will be renewed next season, with the pair taking charge of the
The latest gossip and rumours from the newspapers and online:Chelsea will issue a hands off warning to Jose Mourinho over