Cristiano Ronaldo could have a "negative effect" on Manchester United.Ole Gunnar Solskjaer has confirmed that Ronaldo will make his second debut for United when Newcastle visit Old Trafford on Saturday.Carragher said he thought the signing of the five-time Ballon d'Or winner could backfire on the Red Devils.But former United keeper Schmeichel reckoned that was just wishful thinking from Carragher, who spent his entire career with fierce rivals Liverpool.
Carragher told CBS Sports : "I've never seen so many ex-Manchester United players almost looking love-struck by the sign of Cristiano Ronaldo so it's a huge moment for them.
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