West Ham boss Manuel Pellegrini has undergone a defensive overhaul so far this summer and further changes are expected.
The Hammers have welcomed three new signings to the London Stadium so far in the form of Issa Diop, Lukasz Fabianski and Ryan Fredericks, with the capture of the latter potentially leading to exits.
West Ham are prepared to sell full-back Sam Byram this summer but, with no bids being presented, Football.London states this has led to a change in strategy from the Hammers.
24-year-old Byram joined West Ham in 2016 from Leeds United but has struggled to secure regular first-team opportunities and the arrival of Fredericks on a free transfer from Fulham has pushed the full-back further down the pecking order.
Byram is one of a number of players that West Ham are looking to sell this summer but a lack of interest in a permanent deal has led the Hammers to consider accepting a season-long loan deal, with Nottingham Forest the favourites for his signature.