#6 CM - Patrick Vieira
Patrick Vieira had all the qualities a central midfielder should have--strength, energy, ability on the ball and the vision to pick out a pass. He was pivotal in Arsenal's success under Arsene Wenger, especially during the 'Invincibles' season.
Vieira's importance can be gauged by the fact that, even 13 years after his departure, the Gunners are yet to find a suitable replacement. The legendary midfielder's trophy cabinet includes three PL titles with Arsenal.
Post his time in London, the Frenchman had a five-year spell in Italy, before, eventually, returning to England with Manchester City. For City, he played one season in 2010-11 and, following that, he transitioned into the role of Head of the Club Academy.
#7 CM - Yaya Toure
Manchester City signed Yaya Toure from Barcelona in 2010--and what a signing it proved to be, even though, it left many unconvinced at the time.
Yaya was a consistent presence in Man City's starting lineup for eight consecutive years. The Ivorian's mixture of defensive rigidity and explosive attacking play was utterly unmatched.
However, during Toure's last two seasons at the Etihad, his declining relationship with Pep Guardiola substantially reduced his playing time, and tempted him to leave them this summer.
Still, for the Cityzens, it is safe to say that he will always be a legend, who has played a big role in taking the club to the next level.