Leicester striker Mark De Vries' loan spell at Leeds has been curtailed after he suffered a broken toe.
De Vries was transfer-listed by the Foxes during the summer
The 32-year-old scored one goal in five appearances for Leeds, and his initial month's loan was due to expire after Saturday's home game with Millwall.
"It is a bit of blow for us," manager Dennis Wise told BBC Radio Leeds.
"But you never know - he could get himself fit, and in a month's time we could get him back if my other strikers are not available at that time."
However, fellow striker Leon Constantine is set to return to full training next week.
Wise must also decide whether to extend the loan spell of Coventry striker Wayne Andrews, who signed at the same time as De Vries and whose loan also runs out after this weekend.