However, he wants more from the Brazilian.
Ahead of their clash with West Ham, Bielsa said: "Whether he can do more or not is whether he can do it on a regular basis.
"The set-pieces, he manages them very well. Physically, he's very apt. He can unbalance individually or combine with his team-mates.
"I can't think of many more things to add to an attacking player, but the most important thing is how many times those resources are shown in every game."