Manchester City are preparing to be without Sergio Aguero for Saturday's Champions League match against Lyon.
Aguero is continuing his recovery from knee surgery in June, but manager Pep Guardiola says the Argentine forward has yet to join his teammates in Lisbon ahead of City's quarterfinal.
"Sergio is still in Barcelona. If he was to come here, he would have to do a test," Guardiola said.
"He is still in Barcelona making progress with his recovery."
Aguero was forced to miss City's triumph over Real Madrid in the round of 16 last week. His replacement, Gabriel Jesus, scored the deciding goal in the 2-1 victory.
It remains unclear whether the 32-year-old will be available if City manage to progress. However, Aguero reportedly expects to miss the remainder of his club's Champions League campaign.
The winner of Saturday's contest will take on Bayern Munich or Barcelona in the semis.
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