Sam Allardyce has been driven up the poll by a landslide vote from West Ham fans calling for him to be sacked.

Nearly four out of five Hammers supporters in a survey have delivered a huge blow to Big Sam’s chances of remaining in charge at Upton Park for a fourth season.

Of the 12,392 supporters who took part in a single public opinion poll across 16 independent West Ham fanzines and websites, a damning 77.95 per cent said Allardyce must go.

With owners David Gold and David Sullivan admitting a decision on Allardyce’s reign will be made at the end of the season, the fans’ verdict could be the last straw before the haystack comes crashing down.

Travelling missionaries from the East end turned on Big Sam in Saturday’s 1-0 defeat at West Bromwich Albion, the Hammers’ fourth straight loss.

But the tide has been turning against Allardyce since a dismal run over Christmas and New Year, which briefly dumped West Ham in the bottom three.

Diplomatic relations between jellied eels and the dugout collapsed after last month’s desperately laboured 2-1 home win against 10-man Hull, when Allardyce cupped an ear sarcastically to the storm of boos which greeted his side’s artless win.