Liverpool defender Jamie Carragher says only Barcelona - outside of England - would be capable of challenging the top four in the Premiership.

"It's hard to win the Premier League because our top four sides plus Barcelona probably make up the best five sides in Europe," he told liverpoolfc.tv. "That's the challenge we face.

"You can look at the statistics from this season and it's impressive that we've only lost two games and scored lots of goals, but United have got more points than us and credit to them because that's what matters.

"We have to make sure we finish second now and win our last game of the season next weekend."