Liverpool veteran Jamie Carragher admits he's been frustrated at times this season over the lack of first team action he's seen.

Carra has spent more time on the bench than he's been used to as Daniel Agger and Martin Skrtel have been in outstanding form at centre-back.

"I can't lie, it has been difficult at times. But I've said it loads of times in interviews: you have to be respectful to the manager and the other players," Carragher told liverpoolfc.tv.

"Privately at times I'm frustrated but that's because I'm a footballer, I want to play and I'm passionate. I wouldn't be here in the first place otherwise. I love the game. But I realise this happens to everyone at a certain age. It also reminds me what I've done.

"I sometimes think, 'Jesus Christ, I've played for Liverpool's first-team pretty much every week for 16 years.'

"When you do it every week, it slips your mind a little but when you play the odd game against Oldham or Brighton at Anfield in the cups and you leave the pitch knowing you've won well and done alright yourself, it's a great feeling. So it sinks in more when you're not playing."