Upton Park side to battle Emirates Stadium outfit in race for in-form centre-back.
West Ham are to join Arsenal in pursuit of Celtic defender Virgil van Dijk according to talkSPORT.
The Dutch defender has impressed during his time in Glasgow and has been strongly linked with a move to the Premier League with Arsene Wenger apparently coming close to signing the former Groningen centre-back on summer transfer deadline day.
Hammers boss Sam Allardyce may see the Parkhead youngster as a possible replacement for contract rebel Winston Reid, the New Zealand defender being well into the final year of his current deal.
Celtic may hope that West Ham’s interest could start a bidding war with Celtic wanting at least £7m for the 23 year old.
Arsenal’s interest in Virgil van Dijk is perhaps with a view to ably replacing Thomas Vermaelen, who left for Barcelona in the summer, and to secure extra strength in depth considering the club’s recent run of injury concerns.