Leeds loanee George McCartney has signed an extension to remain with the club until the end of 2010.
The 29-year-old left-back will now stay at Elland Road from parent club Sunderland for a third month.
The Northern Irishman has been a regular in the Leeds side during his time in Yorkshire and made his 12th consecutive appearance for the Whites in Saturday's goalless draw at Reading, a result which leaves Simon Grayson's men eighth in the Championship table.
McCartney told United's official website: "I'm here until the end of the month now.
"I wanted to come here and get back playing. We were a bit up and down at the start but we're on a roll now. We're more solid at the back."
Speaking about Leeds' targets for the season, he added: "It's too early too say what will happen in terms of promotion, there's two good teams at the top (QPR and Cardiff) and you would be happy with a play-off place. But we're still before Christmas and it's all about trying to get as many points as you can and see where that takes you."
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