Liverpool defender Martin Kelly has ruled himself out of action until the new year after injuring his knee.

The full-back limped off late in yesterday's 2-1 defeat at home to Manchester United after falling awkwardly and appearing to twist his right leg.

Liverpool have yet to confirm the extent of the problem but Kelly himself does not expect to be back for at least three months.

"What I can say is its not the worst injury I've had, and for sure I'll be fighting for my place next year when I'm back fitter and stronger!" he wrote on Twitter.

Manager Brendan Rodgers' injury concerns do not end there with centre-back Daniel Agger awaiting the results of a scan on suspected medial ligament damage in his left knee, while forward Fabio Borini has a bruised foot and swollen ankle after the United game.

Manchester City midfielder James Milner will see a specialist today after missing yesterday's 1-1 draw against Arsenal with a toe problem.

The England international has been on the fringes for City this season, making only one Barclays Premier League start and another late appearance as a substitute but he remains a valuable member of boss Roberto Mancini's squad.

The Italian admits he does not know how long Milner might be out for, saying: "Milner has a problem in his toe. He has pain. He will see a specialist on Monday and after that we'll decide what to do."

Defender Maicon also missed yesterday's clash after taking a kick in Tuesday's defeat by Real Madrid and will miss tomorrow's Capital One Cup tie against Aston Villa.