Napoli midfielder Hirving Lozano was delighted after their Champions League round 16 first-leg win at Eintracht Frankfurt.
Victor Osimhen and Giovanni Di Lorenzo struck for the visitors' 2-0 win.
“We worked really hard against a very strong side. It was complicated at the start, but we put in a good performance," Lozano told Sky Italia.
“I think this was one of Napoli's best performances of the season and we must all keep working to continue in this direction.
"We have to take it one game at a time. It is a strong squad with good lads and that is very positive. We're not in the next round yet, though, Eintracht are dangerous away from home and there are another 90 minutes to play."