The Hammers were apparently in talks to sign the player, when he ruptured knee ligaments.
It has been reported in Germany that West Ham United might have had another midfielder through their door this summer, were it not for injury.
The report comes from a story in Bild. They are highlighting the rehabilitation work of Germany under-21 international Tolgay Arslan in Hamburg this month, as he aims to recover from a serious knee injury.
The 25-year-old is perhaps best known in England for two reasons. Liverpool fans will remember him for scoring a thunderbolt past them in the Europa League last term. West Ham fans will because they were linked with his signature this summer.
Slaven Bilic had signed Arslan for Besiktas and was keen on taking him to the Premier League this summer, when he headed for Upton Park. Bild reports that West Ham were indeed in the process of negotiating an €8 million (£5.8 million) move for the player when he got injured.
The midfielder was in pre-season training with Besiktas when he suffered a rupture to his anterior cruciate ligament in his left knee. He underwent surgery and was ruled out for six months – leaving no chance of West Ham making a move for him in the summer.