Arsenal are heading into this transfer window with a need to strengthen the depth of Mikel Arteta’s attack, but they have faced issues. A key target in Benjamin Sesko turned down an approach from Arsenal to remain at RB Leipzig, and it is unclear who Arteta will turn to now. Several strikers have been linked, but with Kai Havertz in great form as a centre-forward, questions remain over whether another centre-forward is needed right now. However, Eddie Nketiah looks set to depart in what would be a profitable sale, and a striker would be needed to replace him in the squad. Strengthening the dep…