Four Udinese players turned out for their respective national teams on Friday evening.
Jaka Bijol and Sandi Lovric both started for Slovenia in a 1-0 friendly win over Luxembourg. The defender played the full match while the midfielder was substituted in second-half stoppage time.
Maduka Okoye returned to the Nigeria team for a friendly match against Russia, which ended 1-1.
Lorenzo Lucca meanwhile came on for the last 18 minutes plus added time of Italy's 3-0 defeat to Norway in World Cup qualifying.