Missing out on Joao Mario is a big blow for West Ham

David Moyes manager of West Ham United during the Emirates FA Cup Third Round Replay match between West Ham United and Shrewsbury Town at London Stadium on January 16, 2018 in London,...

The midfielder will not be making the switch to West Ham United.

Diego Falcinelli of US Sassuolo Calcio (L) is challenged by Joao Mario of FC Internazionale Milano during the serie A match between US Sassuolo and FC Internazionale at Mapei Stadium -...

West Ham United are eager to bolster their resources before the closure of the transfer window, but one player who won't be joining the club is Joao Mario.

The Inter Milan midfielder has turned down the opportunity to join West Ham on loan, as reported by Sky Sports.

According to the report, Inter were happy to loan Mario out only for the player to reject the move.

Joao Mario of FC Internazionale in action during the Serie A match between SSC Napoli and FC Internazionale at Stadio San Paolo on October 21, 2017 in Naples, Italy.

Missing out on Mario represents a significant blow for West Ham as the 24-year-old could have provided them with an extra creative spark in midfield.

The Portugal international is capable of unlocking opposing defences with precise passes and could have played a major part in the club's battle to avoid relegation.

Gaetano Letizia of Benevento competes for  the ball with Joao Mario of Inter during the Serie A match between Benevento Calcio and FC Internazionale at Stadio Ciro Vigorito on October 1,...

However, West Ham must now act quickly and turn their attention elsewhere as they look for reinforcements, with David Moyes still yet to sign any new players this month.

West Ham are in 11th place in the Premier League but there is still much work for them to do in order to secure their safety, as demonstrated by the fact that they are just five points clear of the relegation zone.

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