Barcelona could be missing Luis Suarez for four weeks after he broke down in defeat at Athletic Bilbao.

Suarez had to go off after 33 minutes of Barcelona's 1-0 loss to Athletic Club on Friday night and he could miss some more time.

The Catalan club have confirmed that he has a calf injury and, although they didn't specify a recovery time, that injury could sideline him for three to four weeks.

"Tests carried out on Saturday morning have confirmed that first team player Luis Suarez has an injured right calf," a statement read.

"His recovery will dictate his return to action."