But this goal could still give them a big advantage as they will start the next match without pressure, while Napoli will be required to score fast in order to get everything to the zero point. Despite the performance of Napoli in the Serie A this season, Milan has great history in the Champions League with 7 titles. On the other hand, Napoli has no history in this competition, but that doesn't deny that they are trying to achieve something this season. However, these two defeats against Milan in both Serie A and the Champions League could affect them psychologically in the next match.
Napoli has no more experience in Champion League and lead until quarter final is this season become best achievement, but has good performance in domestic league not guarantee for Napoli winning against AC Milan. Seems has psychologically effect after Napoli defeating in domestic league with 4-0 and Milan can continue the impressive performance on second leg indeed won 1-0.
For Napoli chance lead to semifinal is not close, they have second leg and 90 minutes for scoring two goals above if want get first experience lead until semifinal of champion league. Serie A team seems dominance in champion league quarter final because they have three team and potential with final stage have participants from Serie A after Inter winning 2-0 on first leg and potential with Serie A semifinal match.