Portugal concluded their qualifying campaign with a 2-1 win in Serbia, who finished the game with nine men.
With their place in next summer's finals already assured, Portugal coach Fernando Santos allowed talisman Cristiano Ronaldo extra time off before returning to club side Real Madrid.
Ronaldo's former Manchester United teammate Nani tapped in the rebound from a saved Danny shot to give the Group I winners a fifth-minute lead.
Zoran Tosic equalised an hour later when he turned home Aleksandar Kolarov's cutback but Serbia were not level for long as Joao Moutinho's delightful curling shot after 78 minutes restored Portugal's lead.
Kolarov was sent off for protesting that the goal should not have stood and then in the 81st minute, Chelsea's Nemanja Matic was also shown a red card for swiping his arm at Andre Andre during an aerial duel.