The arrival of Oleksandr Zinchenko has taken the number of new signings so far this summer to five.
Marquinhos, Matt Turner, Fabio Vieira and Gabriel Jesus had already been added to the squad in pre-season, before Mikel Arteta further bolstered his playing staff with the addition of the Ukraine international.
Zinchenko is the 17th permanent signing since Arteta took over in December 2019 and the manager is continuing to reshape his squad as he heads into his third full season in charge.
Ten of the last 11 signings have been aged 25 or under, and the boss said that the aim is to get to a point where the squad can sustain itself.