Rotherham United is facing a tough battle to keep Dan Gore, with manager Matt Hamshaw admitting that the club may struggle to retain the player ahead of the January transfer window. Gore has been impressive at the heart of Rotherham's midfield, expertly shielding the defence and dictating the tempo of play. He has turned out 19 times in League One for Rotherham, contributing one assist in that period. The Carrington academy graduate recently opened his senior goal account in the 7-2 thrashing of Salford City in the Vertu Trophy second round. Hamshaw spoke to reporters and acknowledged that Gore's performances have undoubtedly put him on the radar of clubs in the upper reaches of League One and the Championship. And with the January transfer window looming, Hamshaw knows that Rotherham may face a fight to keep Gore. But the Rotherham boss is hopeful that the club can retain the player, citing his enjoyment at the club and the importance of a 40-plus game season for his development. So, Hamshaw will be delighted if Gore is still at Rotherham on February 1. The club's plan is for Gore to stay, and Hamshaw is in regular contact with Manchester United, who seem happy with Gore's progress at Rotherham. However, if a big offer comes in, Gore may be sold. Hamshaw said, 'If we get to the end of January and he's still here it would be a great signing.' He added, 'Sometimes it's hard with loans. You want your loan players to come in and really do well and then when they do well you might lose them in January.'