That would give Arsenal five first-team stoppers, although two are out on loan.
The talk at Arsenal recently has been surrounding their goalkeeper Petr Cech. The former Chelsea star was brought in this summer with much furore, as Arsenal fans predicted it was the signing that might just see them claim a Premier League title again.
It certainly did not appear that way at the weekend.
He was at fault for both West Ham goals in an opening day 2-0 defeat to The Hammers at The Emirates.
Now it is being reported that Arsenal are looking at yet another goalkeeper this summer. It is reported by Eurosport, who quote Spanish paper Marca, that Arsenal will launch a bid for Olympiakos goalkeeper Roberto in the coming weeks.
The 29-year-old Spaniard is said to be available for a fee in the region of £4.3 million, which is his release clause, and would be keen on a move to North London.
Arsenal have already sent Wojciech Szczesny and Emiliano Martinez out on loan to Roma and Wolves this summer and is now left with Cech and David Ospina challenging for the number one spot.
Wenger is known to like three top-class options, which might just see him dive in for this stopper to challenge for the number one spot.