West Ham United are hoping to conclude at least one important new signing in the next 48 hours.

Joint Chairman David Sullivan says he and manager Sam Allardyce are working hard to make additions to the Hammers squad as the club continues its push for promotion from the npower Championship.

With the transfer window drawing to a close on Tuesday 31 January, the club are pulling out all the stops to strengthen after going top of the table at the weekend.

News of all new arrivals will be announced exclusively on whufc.com and the club's official twitter feed before anywhere else, so make sure you keep checking back regularly for any new updates.

"This has been one of the most difficult transfer windows I have ever been involved with in all my time in football," said Mr Sullivan. "However, with the window now coming to a close, we would like to reassure supporters we are still working tirelessly to bring in new faces and are hoping to make one or two important additions to the squad in the next 48 hours."

West Ham's two January transfer signings so far, George John and Joe Dixon, were announced exclusively on the club's official site, with both players giving their first interviews as West Ham players to whufc.com and West Ham TV before anyone else.