The City boss was responding to a question about Kun's 40 goals in 63 matches against established top six teams.
He said: "It is what it is. The big players need to be there in the big moments and he did it, time and time again.
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"Hopefully he can continue. The game belongs to the players. The big games belong to special players.
"That is what he is about. When the best tennis players need to save a break, they serve an ace. Big clubs need this kind of player."