Zaha turned on the style as United defeated Blackburn 2-0 at the Leigh Sports Village.
The summer arrival from Crystal Palace sparkled throughout and finally ended the hosts' resistance with an opening goal on 67 minutes. James Wilson, who has just turned 18, clinched the three points with a fine free-kick on his first Barclays Under-21 Premier League start.
Darren Fletcher played a full 90 for United as he continues his comeback from a serious bowel condition.
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