Manchester United have serious reservations about re-signing Real Madrid star Cristiano Ronaldo. The 32-year-old is being sensationally linked with a return to Old Trafford, nine years after he moved to the Bernabeu.  Ronaldo supposedly wants to quit Real after being accused of tax fraud.  However, Express Sport understands United are wary about moving to bring their prodigal son home.  It is understood the forward was not on their initial list of transfer targets before the summer.  Mourinho is also worried about whether Ronaldo could handle life back in the Premier League - and want to avoid a prolonged saga that could see them miss out on the likes of Alvaro Morata,...
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