The 20-year old Chilean will spend the 2014/15 season on loan with Croatian side Dinamo Zagreb as he furthers his development in a first team environment.
Santiago native Henriquez joined United from Universidad de Chile in the summer of 2012 but is yet to make a first team appearance for the Premier League giants.
Of the loan, Henriquez told Dinamo's official website: "I am happy with my arrival at Dinamo, with whom I want to do good things.
"I have a lot of motivation and I want to prove myself and I believe Dinamo is a great club for it."
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