Nemanja Maksimovic struck the winner to give Serbia an unlikely victory over Brazil in the U20 World Cup final.
Kevin Volland scored twice as Germany thrashed Denmark 3-0 to move top of Group A at the European Under-21 European Championship.
Goals from Marco Reus and Thomas Muller gave Germany victory over Georgia while Portugal beat Serbia to go top of Group I.
Germany beat European champions Spain 1-0 in Tuesday night's friendly thanks to a late goal from Toni Kroos.
Dick Advocaat became the third international manager to leave his post on Saturday after resigning as Serbia head coach.
Denmark eased the pressure on coach Morten Olsen with a come-from-behind 3-1 victory over Serbia.