Ernesto Valverde suggested the superstar, who did not train in full Thursday, could be a doubt for Saturday's La Liga game at Sevilla
Lionel Messi remains a doubt for Barcelona's La Liga trip to Sevilla on Saturday after he was unable to play a full part in Thursday's training session.
Messi missed both of Argentina's friendlies during the international break with a minor hamstring injury.
While the nation fared well against Italy in a 2-0 victory on Friday, a match up against fellow World Cup hopefuls Spain in Madrid on Tuesday resulted in humiliating 6-1 loss.
Barca coach Ernesto Valverde indicated Messi would require a fitness test on his return from international duty.
The club confirmed in a statement that Messi trained on Thursday, but only for part of the session.