Jan Vertonghen (central defender, former Tottenham), Everton (winger, former Grémio) and Luca Waldschmidt (forward, former Freiburg) are official players from the professional football team of Sport Lisboa e Benfica. Players present themselves individually at the Benfica Campus, moments you can see here.
The numbers of the jersey are already defined: Vertonghen takes the number 5, Luca Waldschmidt the number 10 and Everton the number 7.