article_snippet: £12million summer signing leaves the Hammers boss with just one recognised striker fit to face Arsene Wenger’s side.
article_snippet: Sam Allardyce admitted: 'Well there is one
article_snippet: Sam Allardycwe has come under growing pressure at West Ham after a disappointing run for the Hammers .
article_snippet: But Sam Allardycwe could still have anticipated featuring heavily in the Hammers run-in with Andy Carroll expected to be out until the end of the season after undergoing surgery to repair torn knee ligaments.
article_snippet: Carlton Cole is also out of Saturday’s London derby as Sam Allardycwe steps up Sam Allardycwe training schedule in a bid to return from a hamstring strain.
article_snippet: So it means Diafra Sakho is the only frontman available to Allardyce at The Emirates as Diafra Sakho side try to get back to winning ways after going through their five games in February without a victory. '
article_snippet: Of course [Valencia] being one of our few strikers that were available, it's a big blow for our,' Allardyce at The Emirates added.
highlights_snippet: Emirates trip after  leaves under-fire Sam Allardyce with just one recognised striker .
  
highlights_snippet: The £12million signing has scored only five goals in 30 appearances .