Juventus coach Massimiliano Allegri says he is not surprised by Olympiakos' home win over Atletico Madrid.
Diego Simeone's side looked in good shape at the Santiago Bernabeu Stadium in the weekend but were upset by a determined Olympiakos side on Tuesday night.
"I'm not surprised and I'm not worried," Allegri said in his post-match conference.
"This is a very balanced group, especially us, Olympiakos and Atletico Madrid. On paper Malmo looks inferior but it will not be easy to get a win in Sweden.
"It was important for us to start well, to get all three points, we will now focus on the Serie A and only after we will think of Madrid."
Young striker Alvaro Morata was again a late substitute for Juventus but is not yet fit to play the whole 90 minutes.
"He trained alone for a full month after the injury he suffered in pre-season," Allegri added.
"He's fit but not fit enough to play 90 minutes. But he's a good substitute to have, just like Coman, Giovinco and all the other players on the bench.
"Giovinco came on with four minutes left but he showed spirit. Same goes for Romulo.
"For me it is important to have all players available next month because we may suffer injuries and also some players started pre-season late because of international duty."