Slaven Bilic remains undeterred in his pursuit of Sunderland striker Jermain Defoe despite West Ham having a reported £6 million bid rejected.
Only five teams have scored fewer than West Ham's return of 23 Premier League goals this season, with winger Michail Antonio shouldering much of the burden with eight goals.
Andy Carroll - who has spent most of the season injured - is the highest-scoring of their recognised strikers with just two goals, while Simone Zaza, Ashley Fletcher, Diafra Sakho and Jonathan Calleri have only two between them.
By contrast, former Hammers striker Defoe has been a rare positive for relegation-threatened Sunderland this term, scoring 11 of their 19 Premier League goals as they desperately look to fend off relegation.