Strengthening central midfield and the forward line is imperative for Arsenal in this window, but signing a left-back to compete or even displace Kieran Tierney is also important.
Nuno Tavares was acquired for a fee believed to be in the region of £7 million, and to say the 22-year-old had a rather turbulent first season in north London is an understatement.
The Portuguese defender delivered some strong performances earlier on in the season against the likes of Aston Villa, Leicester and Watford, but since the turn of the new year, he struggled when called into action, demonstrating plenty of rawness within his game, particularly in deeper areas.