The Italian coach remained unmoved by the striker's impressive display in Sunday's Ligue 1 encounter against the table-toppers, claiming that he was expecting it
The Sweden international netted twice to help the Parisiens to a draw at the Stade Velodrome, but the former Chelsea boss was not surprised by the striker's display as he knows of what the player is capable.
"I was not impressed by his performance, because I know Zlatan very well. He's a great goalscorer and a very complete player," Ancelotti was quoted as saying by RMC.
"Zlatan was excellent from set-pieces but there were also chances for [Javier] Pastore and [Kevin] Gameiro.
"Ibra is used well in our side. He's scoring and that's good for us. People say he's tired? Maybe. I think that at even 80 per cent he is good enough to play.
"He has a lot of qualities and has a nice character as well. He's very useful for the team."
Ibrahimovic has netted nine goals in seven Ligue 1 appearances so far.