Arsenal confirm first summer signing as £27m option triggered
![Arsenal confirm first summer signing as £27m option triggered](https://sm.imgix.net/24/17/mikel-arteta.jpg)
Arsenal confirm their first permanent signing of the summer transfer window as David Raya joins in a £27m deal from Brentford.
Arsenal confirm their first permanent signing of the summer transfer window as David Raya joins in a £27m deal from Brentford.