Cristiano Ronaldo was told to wear a face mask during Portugal's Nations League win over Croatia - which he missed because of 'a bee sting'.
Ronaldo's wait for his 100th international goal continues after he had to sit out his country's 4-1 victory on Saturday.
So he had to watch from the stands at the Estádio Do Dragão as his side put in an impressive performance against the World Cup finalists - but the Juventus star forgot to wear his face covering.
Pictures showed Ronaldo in the stands without his mask as Portugal's covered-up substitutes looked on.
And at one point during coverage of the game, the camera cut to him being asked by a member of the stadium's staff to cover up - with the 35-year-old quickly obliging.
Ronaldo could also miss Tuesday's game against Sweden after his foot became infected in what his coach likened to being stung by a bee.
Portugal's head coach Fernando Santos had revealed in a press conference that Ronaldo would be doubtful for Saturday's game.
“I am very doubtful that he will be 100 per cent okay,” he said in quotes reported by Football Italia.
“He had been training well, then suddenly on Wednesday one of his toes was red, as if he’d been stung by a bee.
"Now we have to wait. With an infection, you don’t know how long the recovery is going to take.”
Joao Cancelo, Diogo Jota, Joao Felix and Andre Silva scored as Portugal began their defence of the inaugural Nations League title in style on Saturday.
They travel to Sweden for Tuesday's second game of the campaign.
Ronaldo, his country's leading scorer on 99, will hope his foot heals in time so he can target his century of international goals.
