Man Utd boss delighted with Pique, Simpson
"Danny's a very confident boy," Sir Alex told MUTV. "He's so quick and is a tremendous defender. He's improving his technique all the time and he is one of the players that I would not consider going on loan this year because he's valuable to us.
"Pique also came in today and was absolutely outstanding. He was one our best players against Coventry [in the Carling Cup] and is improving all the time."