Rob Hall and Cristian Montano have extended their youth loans at Oxford United and Dagenham & Redbridge for another month.
Both will stay at their League Two clubs until Saturday 14 January, although can be recalled to the Boleyn Ground immediately if required. Hall is also due to play for the Under-18s in their FA Youth Cup fourth-round home tie against Brighton & Hove Albion whenever it is arranged next month.
Meanwhile, Callum McNaughton is staying at AFC Wimbledon until 4 January. It means that he could come up against Hall when Oxford arrive for a televised encounter at 12.15pm on Boxing Day. The match will be shown live on Sky Sports 1 before the Hammers play Birmingham City at 5.30pm.
Frank Nouble has returned to the club after his three-month spell at Gillingham, while Ahmed Abdulla is also back at the club after his time with Swindon Town.