Inter Milan coach Simone Inzaghi admits they must defeat Champions League opponents Viktoria Plzen.
Inter face Viktoria after defeat to Bayern Munich in their opening clash.
Inzaghi said, “They're a physically strong team, which we saw and studied in the two matches with Qarabag and Barcelona. They've built this entry into the Champions group stage in their stadium.
“They have important players up front, Chory, Mosquera, Sykora, they are important players, and then they have physicality and very fast counter attacks, they proved it even in a difficult game like Barcelona.
“Undoubtedly, it's an important game, we know we're in the most difficult group of the whole Champions League but we want to play.
“The opener wasn't best, we tried but Bayern were better than us. Now we know that this match will bring us pitfalls, but we want to play it in the best possible way."
He added: “As far as the goalkeeper is concerned I've decided but I don't feel like saying it right now, the players don't know yet because we've only had one training session.
“This morning we were able to work on the video, little on the pitch. Tomorrow morning we will have the technical meeting and it's only right that they know first."