Manchester City coach Guardiola talked about Rodri's injury in an interview.
Guardiola said: "Yesterday in training, he said, 'I can't kick. My knee hurts so much, I really can't kick, I can't kick anymore.'"
"I just said, 'You can't kick? Then don't kick, others will play.' I don't know the situation yet... But yes, it's the same knee I've been injured before."
Rodri suffered a serious injury to the cruciate ligament torn on his right knee last year, accompanied by meniscus injury.