Derby County defender Tom Naylor has extended his loan at Bradford City by a further month.
The 21-year-old initially joined the Bantams on a temporary basis in November last year and made five appearances for the Capital One Cup semi-finalists.
Naylor, whose only appearance for Derby this term came as a substitute in the Capital One Cup against Scunthorpe United, picked up a hamstring injury a fortnight ago - but Bradford have opted to keep him until 9 February.
Rams manager Nigel Clough said: "Tom went to Bradford to gain first-team experience and by extending his loan by another month; it gives him more of an opportunity to get a few more matches under his belt - especially as they are still involved in the Capital One Cup and the Johnstone's Paint Trophy."
Naylor joined Derby in November 2011 from Mansfield Town, initially on loan, before sealing a permanent move to Pride Park during the January transfer window.