Gunners fans will be relieved to know the latest player to head to Manchester is not an established first-team star, and in fact he is a player the club decided to part with in December.
Denzeil Boadu was told by Arsenal at the end of last year that he would not be kept on at the Emirates, but the 16-year-old had a host of suitors.
It was a slightly surprising move by the Gunners to release the teenager, who had been tipped for big things.