The Hammers have been steadily reshaping their squad this summer, clearing out flops from last season's poor recruitment drive and bringing in Pablo Zabaleta, Joe Hart, Marko Arnautovic and Javier Hernandez.
With a net spend of only around £10m, speculation is rife Slaven Bilic is far from done in the window with the East Londoners linked with more quality stars such as Jack Wilshere, Keita Balde Diao and Etienne Capoue.
But as strange as it seems their best piece of business could yet be holding on to star player Manuel Lanzini in the wake of Neymar's record move from Barcelona to PSG.
Ironically the Brazilian has already burned the Hammers once back in 2010 when, as an 18-year-old playing for Santos, his father rejected overtures from the club under then manager Avram Grant.
West Ham failed to land Neymar and went on to be relegated that season.
Now seven years on, a transfer involving the superstar attacker could be set to put West Ham in a difficult position once again.
And Hammers star Lanzini is reportedly a target for both clubs should they lose their key playmakers, with Liverpool's interest well documented by the likes of The Sun.
Former River Plate man Lanzini has been sensational since signing for the Hammers, especially since stepping out from the shadow of the departed Dimitri Payet.
His goal against fierce rivals Tottenham Hotspur last season secured the club's Premier League safety but Lanzini's ambitions could be a lot loftier as he is desperate to cement his place in the Argentina national team.
With money seemingly no object for Europe's elite, a huge bid may prove tempting for co-owners David Sullivan and David Gold, who eventually let the £50million rated Payet leave for just half that price in January.
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