Ilkay Gundogan has praised the both Jurgen Klopp and Pep Guardiola, but singles out the latter's attention to detail which makes him the best manager in the world.
The midfielder played under Klopp at Borussia Dortmund where he won the Bundesliga in 2011-12, before reaching the Champions League final a year later.
Gundogan joined City in June and is now witnessing the intense methods of Guardiola first hand, who frequently pipped Klopp and Dortmund to the title during his time in charge of Bayern Munich.
'Both are world-class managers with their own qualities,' Gundogan was quoted as saying by the Express.