The Reds did later earn a penalty when Rafael was tripped by Burak Yilmaz, but Nani subsequently became the third United player this season to miss from the spot - a sequence of events which Carrick concedes Sir Alex may have to address.
"He's probably got something to say," admitted the midfielder, "but thankfully each one we've missed, we've won the game and hopefully next time we get one we'll put it away."
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