Shane Ferguson has extended his loan spell at Millwall from Newcastle until January 9 after moving to The Den last month.
The Northern Ireland international midfielder - who spent the second half of last season at Rangers - has made four appearances for the Lions so far, two from the substitutes' bench.
Able to operate at left-back in the absence of Joe Martin, the 24-year-old has done enough to earn a longer stay in London, although he has been out of action with a hamstring injury.
He had been due to return to Newcastle - for whom he has made 32 appearances including 13 starts - in November.
But Steve McClaren has allowed him to remain with Millwall for the sake of enjoying regular first-team football over the next few months.
Ferguson was sidelined for much of last term with a knee ligament injury and his only club outings came for Rangers in the Scottish Premiership play-offs in May.
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