The Uruguayan striker was replaced after 37 minutes in San Mamés against Athletic due to the injury
Tests carried out on Saturday morning have confirmed that first team player Luis Suárez has an injured right calf. His recovery will dictate his return to action.
The Uruguayan striker started the game against Athletic in San Mamés but was replaced on 37 minutes due to the injury. Rafinha came on to take his place and the midfielder struck the crossbar not long after entering the fray in Bilbao, Athletic keeper Unai Simón diverting his effort on to the woodwork.
The Barça number 9 was top scorer for the blaugranes in preseason scoring against Arsenal in the Gamper game and netting twice in the second of two clashes against Napoli on the USA tour.