The summer signing has no experience of his new club's recent results against Liverpool on Merseyside, where they have shipped 12 goals in their last three visits including a 5-1 loss last season.
He posted to social media:
"Preparing this Saturday's match in Anfield.
"We know it will be a tough match against the European champion. Absolute respect, but no fear. We go all out! Let's go Gunners!"