Along with a new striker, we know that Mikel Arteta is keen on bringing in a new central midfielder this summer as he looks for further competition to go head-to-head with the likes of Granit Xhaka and Thomas Partey.
As various reports have claimed, Youri Tielemans appears to be the frontrunner at this stage, with the Belgian having just one year remaining on his Leicester City contract. However, the transfer window can be unpredictable, and it's always wise to have contingency plans in place.
It's also worth remembering that Arsenal could be in need of two midfielders later down the line if there is a key departure. AS Roma are still believed to be interested in Xhaka, and any move would have a huge impact on the club's plans.