Arsenal have just made their second signing of the summer in the shape of Mikel Merino, but their business may not be done yet. Indeed, Arsenal may have to bring in further reinforcements this summer if they want to win the Premier League, and there’s still one glaring hole in their squad. As good as Arsenal are, they don’t have tons of depth in the attack – especially down that right side. In fact, Mikel Arteta has been accused of overusing Bukayo Saka. Speaking on Men in Blazers, Fabrizio Romano has been discussing Arsenal’s transfer plans, and he says that a new winger could be brought in b…