Douglas Luiz's failed transfer from Aston Villa to Arsenal was one that dominated deadline day last month. The Gunners launched multiple moves for the midfielder due to an injury crisis in that area of the pitch, but Villa insisted that the player wasn't for sale.
It doesn't look as though the Gunners will be going back in for Luiz in January, as the 24-year-old signed a new contract with Villa just last week. Arsenal have been linked with plenty of other midfielders - with Youri Tielemans, Manuel Locatelli and Lovro Majer all reported targets.
Luiz's decision to stay at Villa was an interesting one and one which - at the moment - hasn't been vindicated. The Midlands club have been in poor form, winning just two of their 11 Premier League matches so far, resulting in the sacking of Steven Gerrard.