With a statement on its official website, English Premier League table toppers Arsenal has announced that it has completed the signing of Nigeria youth international Semi Ajayi. <br /><br />The financial terms and length of contract were not disclosed by the Gunners, though the player has told this portal that he penned a two - year contract.<br /><br />According to arsenal.com, the 19 - year - old central defender will be on the books of Arsenal Academy.<br /><br />Semi Ajayi joins Anglo - Nigerians Chuba Akpom, Alex Iwobi and Chuks Aneke at the Emirates.<br /><br />The highly rated starlet last represented Charlton Athletic Academy.<br /><br /><br />