Joe Allen
Joe Allen has one year left on his Liverpool contractGetty

Liverpool legend Ian Rush has warned the Reds that they could lose "frustrated" midfielder Joe Allen if he fails to play regularly under Jurgen Klopp. The 26-year-old has started in three Premier League games this season, while spending the majority of the time on the bench.

The Wales international was signed by former manager Brendan Rodgers from Swansea City in 2012. He has over a year left on his contract at Anfield and has not been handed a new contract, with the player admitting that his long-term future at the club remains uncertain.

Lack of playing time and failure to secure his future could see Allen leave his current employers in the upcoming summer transfer window. Rush claims the midfielder is frustrated with the limited opportunities under the former Borussia Dortmund manager. However, the Anfield favourite was quick to heap praise on Klopp for changing Allen's game since he took charge of Liverpool.

"Joe's frustrated by not being in the team. I've seen a lot of players who are happy on the bench, but the thing with Joe Allen is he's not happy doing that. If he's not happy then he might well want to move on," Rush told Wales Online.

"I think he can do a great job for Liverpool. When he came on against Northern Ireland, that was the difference. You look to Bale and Ramsey, but when they're not there he comes off. Threading the balls through that the forwards love, never giving it away.

"I've noticed the last few times he's played for Liverpool, he's getting in scoring positions and getting the odd goal, which he hasn't done before. The Euros will be big for him, to prove that he should be playing every week. For me, I hope that's for Liverpool.

"At the end of the day, he can score goals. The thing is with Brendan, he was happy to never give the ball way, to get the ball from the defence and move it around the midfield.

"But what I like about Joe is he knows to get a regular game these days he has to score goals. He's done that, a few times, Christian Benteke is knocking it down and there's Joe in the six-yard box! He wasn't doing that under Brendan. Playing for Wales, he looks really confident and that gives them a real boost."