Ronaldo secured the historic goal with a volley from 6 yards off a cross from Nuno Mendes to put Portugal 2-0 up in the 34th minute. Portugal went on to win 2-1.
"It means a lot," Ronaldo said. "It was a milestone I wanted to reach for a long time. I knew I would reach this number, because as I continue to play, it would happen naturally."
In the celebration, Ronaldo raised his hands to his face and dropped to his knees.
"It was emotional because it's a milestone," he said. "It seems like any other milestone, but only I know, and the people around me, how hard it is to work every day, to be physically and psychologically fit, to score 900 goals. It's a unique milestone in my career."
The five-time Ballon d'Or winner is 58 goals ahead of his nearest challenger, Lionel Messi, who is on 842. Brazilian legend PelƩ is third on the list with 765.
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