The former Chelsea man joined the Gunners on a free transfer after ending his seven-year spell at Stamford Bridge, and Willian has penned a three-year deal with Mikel Arteta's side.
Despite the financial concerns arising from the coronavirus pandemic, Arteta is still said to be planning a major overhaul of his squad this summer, and the Gunners reportedly have unfinished business in the transfer market.
According to the Daily Star, Arsenal's technical director Edu now wants to focus on getting a deal done for Atletico Madrid midfielder Thomas Partey, but the Gunners are reluctant to hand over the midfielder's £45m release clause.
The report also claims that a new defender is on Arsenal's wishlist, but the North London outfit may be forced to concede defeat in their pursuit of Lille's Gabriel Magalhaes, who is rumoured to be closing in on a move to Napoli.
In order to fund a significant reshuffle ahead of the 2020-21 campaign, the Gunners will supposedly entertain offers for Mesut Ozil, Henrikh Mkhitaryan, Ainsley Maitland-Niles, Shkodran Mustafi, Mohamed Elneny, Calum Chambers and Matteo Guendouzi this summer.