Arsenal still need to sign the ideal alternative for Gabriel Magalhaes at left centre-back, but the player must also be versatile to be available in other positions. Lisandro Martinez seemed to be the main target but a deal never managed to materialise.
According to The Athletic, Arsenal's priority was Martinez due to the 24-year-old's ability to play at centre-back and left-back. Martinez was reportedly keen on a move to the Emirates Stadium, and Ajax are rumoured to have rejected a bid in the region of £25million.
However, Manchester United swooped in and signed the Argentine, which left the Gunners unable to sign a player in this position during the summer. Despite this, it seems that Arsenal could already have the ideal alternative in their ranks, as Auston Trusty continues to impress for Birmingham City.