#4 Nicolas Otamendi
The Argentine was a subject of interest from both the Manchester clubs and decided to join City in 2016. His first year in England was something he would like to erase from his resume. The Argentine struggled with the pace of the Premier League and was often left stumbling when the opposition initiated the attack.
However, in his second season under Guardiola, the centre-back appears to be an altogether different player. He has lead the team's back-line and has been vital to his manager.
The 29-year-old has also chipped in with some important goals to break the deadlocks, famously netting the winner at Old Trafford. In Otamendi, Pep gets a player who can push the team higher up the pitch with his driving runs.
The Argentine looks to be enjoying life at the Etihad under the Spanish boss. Otamendi's form would be pivotal in Champions League knockout stages for City.