Whilst the Hammers brought in the likes of Joe Hart, Pablo Zabaleta, Marko Arnautovic and Javier Hernandez, they still wanted to bring another midfielder before the transfer deadline last month.
Slaven Bilic's top target was Sporting CP midfielder William Carvalho, but a club-record deal for the Portugal international was allegedly abandoned on the final day of the transfer window.
Since then, the situation has soured; West Ham's David Sullivan and Sporting's Bruno de Carvalho have been trading barbs over the past fortnight, over the legitimacy of West Ham's claimed bid for the midfielder.
Now, The Mirror report that Carvalho still wants to join West Ham, and is hoping to complete a move to the London Stadium in January despite the terrible relationship between the two clubs.
Carvalho, 25, has impressed not only with his power and positional responsibility in front of the Sporting defence, but also with his passing range, allowing him to dictate play from deep.
After more than 150 appearances for Sporting and 38 caps for Portugal, Carvalho has attracted major interest from around Europe, but particularly in the Premier League, with West Ham keen to give him the move to England he's looking for.
West Ham and Sporting would have to patch things up to even negotiate a deal, but with Carvalho still hoping to join the Hammers, Bilic's men do still have a chance of landing him.