Manchester City is eyeing depth at left back after the long-term injury to Benjamin Mendy.
Manchester City manager Pep Guardiola is set to go for Espanyol left-back Aaron Martin in January as a replacement for the injured Benjamin Mendy, according to The Sun.
Mendy became the world's most expensive defender in the summer, joining City for £52m before a knee injury against Crystal Palace sidelined him for the season. Fabian Delph has impressed as a make shift full-back, but Guardiola is looking to fill the position with a player more suited to the role.
Martin, 20, has reportedly been a player of interest, and City have been keeping an eye on him after some impressive for displays for his club and the Spanish U21 side.
In the meantime, temporary left-back Delph has become a key figure in City's remarkable start to the season and has even popped up with a goal back in September against Crystal Palace. The club allowed their previous left-backs, Gael Clichy and Aleksandar Kolarov, to leave in the summer.
Martin has also reportedly been considered by Manchester United, and the two Manchester giants could end up competing against each other for the player's signature.
Jose Mourinho has pretty much frozen Luke Shaw out while Ashley Young has deputized in the position of late, meaning both clubs are looking to find a permanent replacement for that role.