Arsenal have completed the signing of scottish defender, Kieran Tierney from Celtic in a £25m deal.
Tierney, 22, joins the Gunners on a five-year contract, with the deal following Arsenal’s £8m deadline day purchase of Chelsea centre-back David Luiz, 32.
Tierney takes Emery’s summer spending over £150m after deals for Nicolas Pepe, William Saliba, Gabriel Martinelli and Luiz.
