Cristiano Ronaldo was denied a dramatic late winner in contentious circumstances as Portugal threw away a two-goal lead to draw 2-2 with Serbia in World Cup qualifying on Saturday.

Diogo Jota had seen his double cancelled out by Aleksandar Mitrovic and Filip Kostic – the former becoming Serbia's all-time leading scorer with his 39th international goal – at the Rajko Mitic Stadium.

Portugal skipper Ronaldo was then convinced his last-gasp effort had crossed the line but the officials judged Stefan Mitrovic cleared before all of the ball had done so, with the Juventus superstar booked for his protestations before he angrily threw his captain's armband on the floor.

It means both Portugal and Serbia, who had Nikola Milenkovic sent off prior to the late drama, each have four points - one more than Luxembourg, who sealed a remarkable 1-0 win against the Republic of Ireland.