Cristiano Ronaldo remains upbeat over Portugal's chances of qualifying for Euro 2020 as he insisted the reigning champions deserved to beat Serbia, while the captain also questioned the absence of VAR.
Serbia were winning the game 1-0 at the time through Dusan Tadic's penalty.
It was only Ronaldo's second appearance for the national team since the World Cup last summer in Russian Federation.
However, Ronaldo has no fears that he will miss the match.
Danilo Pereira scored minutes before half-time as Portugal settled for a 1-1 draw, the second straight Group B stalemate for the defending European champions during this global break.
"I'm not anxious, I know my body", Ronaldo told Portuguese media. "I'm calm, because I know I'm going to be back well in one or two weeks with no problem". Fernando Santos' outfit were denied a second penalty on 73 minutes after the linesman overruled referee Szymon Marciniak's original decision for off-side.
In the group's other fixture, Ukraine came from behind to win 2-1 in Luxembourg, who suffered heartbreak with a late own goal by Gerson Rodrigues, and go top with four points from two games.
Serbia is a good young team that hasn't lost any of their last 7 games and showed us in their last game against Germany that they are capable of playing against best teams in the world.
Portugal continued being held by Dmitrovic's saves until Pereira broke through with a spectacular long-range shot that curled into the net near the end of the first half.
Ronaldo received medical attention on the pitch and had to be replaced by Pizzi after he could not continue.