Again that's great, and also points out the problem with judging players solely on stats. Having watched him myself, he seems to turn up against the bottom sides or weak opposition and minimal impact in the big games or against better opposition.
Thats a myth borne out of the fact noone is finishing his chances.
Game - Pass Completion - Chances Created - Key Passes - Take ons - Interceptions
Overall - 86% - 1.91 - 1.91 - 61.7% - 1.55
v Arsenal - 83% - 2 - 2 - 100% - 1
v Liverpool - 71% - 1 - 1 - 33% - 3
v Man City - 77% - 1 - 1 - 86% - 2
v Chelsea - 90% - 0 - 0 - 50% - 2
Ozil v us - 86% - 0 - 0 - 66% - 1
Kante v Liverpool - 93% - 0 - 0 - 50% - 1
Mata v Arsenal - 86% - 1 - 1 - 100% - 2
He's hardly been terrible against top teams even when compared to some of the best performing midfielders in the league, and has been getting better with every passing game.