Leeds United defender Paddy Kisnorbo is set to miss the rest of the season after suffering a knee injury during Monday's clash with Burnley.

The Australian fell awkwardly during the opening 20 minutes of the game and was immediately withdrawn from the action.

It's the second blow to hit Paddy in less than two years after an Achilles injury sidelined him for 14 months, from March 2010.

United manager Simon Grayson confirmed: "We've had the unfortunate news that Paddy has suffered ligament damage and has been ruled out for the rest of the season.

"It's a big blow for the club, but more so for Paddy after the long-term injury he has just recovered from."