Udinese boss Guidolin happy for Denis over Atalanta goal scoring form
The Argentine is co-owned by the two clubs, which meet today.
Guidolin said: "We are very happy if Denis does well with Atalanta, but only from Monday onwards! I already said many times he is a splendid lad and a good player, who now is proving we were right to invest in him.
"Last season he was recovering from injury and had two great strikers in front of him in the pecking order, but when called upon he did act like a leader."