Arsenal will look to sign a new left-back this summer as Mikel Arteta is keen to bolster his options in that part of the pitch. Arsenal are not currently short of left-back options. Takehiro Tomiyasu, Oleksandr Zinchenko, Jurrien Timber, and Jakub Kiwior are all capable of playing the position. However, Tomiyasu’s injury record means that he cannot be relied upon to be fit and available when needed, Zinchenko is considered a defensive liability, whilst Kiwior is better-suited to playing at centre-back. Meanwhile, it is yet to be seen where Timber features in Mikel Arteta’s tactical plans, as t…