West Ham United are working behind the scenes to sign a new goalkeeper in the January transfer window due to concerns over the form of Roberto, according to The Athletic.

The Hammers have worries between the sticks after a serious injury ruled out the dependable Lukasz Fabianski until December at least.

West Ham summer signing Roberto has been deputising but the Spanish custodian has not covered himself in glory at the London Stadium as yet.

The former Olympiakos stopper’s latest mistake came in the weekend 3-0 defeat to Burnley, where a lame punch from a Clarets corner allowed the hosts to score.

The report suggests West Ham will look for a new number two to back-up Fabianski and are currently assessing potential targets.

The Hammers started the 2019-20 Premier League season well but have been in freefall in recent weeks.

After the international break, West Ham return to domestic action with a home clash against bitter rivals Tottenham Hotspur and Irons fans will hope a positive result can get the campaign back on track.

Roberto clearly has not lived up to expectations and replacing him in mid-season appears like a sensible move by the London club.