The Cardiff left-back arrived on loan for an initial month on Thursday in time to be included in manager Simon Grayson's squad and may start due to Andrew Hughes' groin injury sustained in the midweek win over Orient.
QPR winger Hogan Ephraim and Liverpool goalkeeper David Martin, who also joined Leeds on loan on deadline day, do not have permission to play in the second-round tie.
Leeds will also be without on-loan pair Sam Vokes (Wolves) and Max Gradel (Leicester), who are both ineligible, so Grayson must decide who to play up front alongside Jermaine Beckford.
Luciano Becchio came through the full 90 minutes for the reserves unscathed in midweek following an ankle injury, but if Grayson does not want to rush the Argentinian, who has been out since early October, Mike Grella is available.
