​West Ham United have made an improved £5m offer for Hull winger Robert Snodgrass, as manager Slaven Bilic continues his search for new recruitments during this month's transfer window. 

The Hammers only recently had a £3m bid rejected for the Scottish international but ​Sky Sports understand that they have now made an improved offer to test the Tiger's resolve. 

​​Snodgrass is out of contract in the summer and having already turned down the offer of a new deal, he is widely expected to leave the KCOM at the end of the season. His departure could however be brought forward, with West Ham now willing to spend as much as £5m on Hull's top goalscorer. 

The Scotsman has bagged seven goals so far this season and also has two assists to his name. It seems unlikely that his current club would be willing to let such a valuable player leave considering their perilous position in the Premier League. The Tigers sit bottom of the table and having only won three games all season, they recently replaced manager Mike Phelan with Marko Silva, in a bid to turn their fortunes around. 

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Snodgrass played the full 90 minutes of Hull's 2-0 EFL cup first leg defeat to Manchester United on Tuesday and though Silva has insisted his man will not be going anywhere this month, the Hammer's improved offer may tempt the Humberside club to cash in on a player who is likely to leave for free in six-months time. 

West Ham themselves are desperately searching for new players, as they also look for a dramatic improvement in their season. Having already failed to sign Sunderland's Jermain Defoe, they will hope that this latest offer will be enough to secure their first signing of what could be a busy January for the East London club. 

Bilic's side host Crystal Palace on Saturday, in what appears to be a must-win game for both teams, who have spent much of the season anxiously looking over their shoulder; facing the threat of being sucked into a relegation scrap.