Napoli attacker Jose Callejon admits defeat to Arsenal last week stunned the players.

Napoli host the return-leg of their Europa League quarterfinal on Thursday needing to overturn a 2-0 deficit.

“It was important to look each other in the eye. We know that we didn't do well on Thursday, so we felt the need to have a meeting and all say what we were thinking," Callejon told Sky Sport Italia.

“We were all happy with the results of the meeting and now we go forward. Today is very important for us and for our future.

“It's crucial that we face this game with determination and from tomorrow we can think about the Europa League."