Cagliari coach Gianfranco Zola is delighted with Paul-Jose M'Poku's form.

The young winger arrived last month and impressed in defeat to Inter Milan.

"Today he showed great character and quality. It is important for us to have players with a strong mentality and we are happy with this.

"We certainly need to improve at the back. We tried to work on it in training and I was pretty happy with the way we were defending in the first half, but in football it's often tough to find the right balance.

"We will do better and were also unfortunate to face a side that was in great form."