Manchester City ace Erling Haaland will be assessed this afternoon regarding his fitness.
The Norway forward may have to miss out on the Champions League group stage game against Young Boys.
Haaland came off at half time in a 6-1 win against Bournemouth in the Premier League.
"I can't [give an update]," Guardiola told the media in his pre-match press conference.
"We train this afternoon, so I don't know.
"I speak with the doctor and him. He told me he felt better, but I don't know."