FIFA has confirmed Cristiano Ronaldo did not score Portugal's first goal in Monday's win over Uruguay after Adidas' match ball technology revealed there was no touch on Bruno Fernandes' cross.

Ronaldo was initially thought to have scored his ninth World Cup goal when he attempted to meet Fernandes' inswinging delivery with a glancing header, putting Portugal on course for a 2-0 win. 

The five-time Ballon d'Or winner celebrated the strike wildly, though FIFA later intervened to award Fernandes with his first World Cup goal.

Fernandes later made the points safe from the penalty spot as Portugal confirmed their place in the last 16, and the use of technology from match ball suppliers Adidas means his brace will stand.

A statement from FIFA provided to ESPN read: "In the match between Portugal and Uruguay, using the Connected Ball Technology housed in Adidas's Al Rihla official match ball, we are able to definitively show no contact on the ball from Cristiano Ronaldo for the opening goal in the game.

"No external force on the ball could be measured as shown by the lack of 'heartbeat' in our measurements. The 500Hz IMU sensor inside the ball allows us to be highly accurate in our analysis."

Speaking after the win, Fernandes said the identity of Portugal's first goalscorer was unimportant but outlined his initial belief that Ronaldo had touched the ball.

However, FIFA's ruling means Fernandes has scored seven international goals in 2022, more than twice as many as any Portugal team-mate, with Ronaldo hitting the net three times for his country.

Meanwhile, Fernandes' former Manchester United team-mate remains one goal shy of matching Eusebio's all-time record of nine goals for Portugal at the World Cup finals – all of which came at the 1966 tournament.