Van Persie says the only way of fixing Arsenal’s defensive shortcomings is by signing the defenders that have the necessary qualities.
“What I believe that is very important for Arsenal and for Mikel is that they should find a way to fix set-pieces against,” he added.
“Corners, free kicks, crosses. With every cross against Arsenal you’re holding your breath, ‘it’s almost a goal, it’s almost a goal’.
“So how do you fix that? You fix that with mental toughness.