"Certainly FFP is not dead and we will, for sure, reinforce the rules going forward," Andrea Traverso told The Associated Press at UEFA headquarters.
Leighton Baines scored the only goal in Everton's first-leg win over Ruzomberok in the Europa League qualifiers.
Everton held on to beat Ruzemberok in Europa League third round qualifying, while AC Milan held off CSU Craiova.
Milan were shorthanded and made to work by Universitatea Craiova but newcomers Ricardo Rodriguez and Franck Kessie proved the difference in a 1-0 win.
Wayne Rooney admitted playing for Everton again was ``a great feeling'' after making a winning return to Goodison Park.
Everton avoided an embarrassing start to their Europa League campaign as Leighton Baines scored to give them a 1-0 win against Ruzemberok.