Barcelona striker Luis Suarez concedes they're struggling for form this season.

The Treble champs have battled for consistency so far this campaign.

"We don't have the same punch that we had last year, but okay... last season at the start, we won the games and you felt that we were there. The second half, however, was where we were spectacular," Suarez told TV3.

On Lionel Messi's injury, Suarez added: "Obviously with Leo it's a lot easier, bur without him we have to try and make it easy still, and each one should be responsible for their work and doing it in the best way possible. Nobody will want to replace him because he's irreplaceable."