"It is a passing surface and we have good passers in our side," the United boss has said.
"I watched CSKA's last European game. I didn't see any issue with the pitch.
"When Luton and QPR had them all those years ago we always played well on them.
"We had a great record at those artificial pitches and that was when the artificial pitches weren't as good. The one in Moscow has a far better covering on it.
"We can expect a difficult game there and it's a surface which we're not used to playing on."