Barcelona manager Ernesto Valverde has insisted he is "calm" about Lionel Messi's injury after the five-time Ballon d'Or winner missed both Argentina's friendly clashes during the international break.
"I am calm. We will not get too worried ahead of time about this, tomorrow the medics will look at him and we will see what steps to take. [Messi] finished the last game in La Liga well, against Athletic, with some pain but nothing too much. I will not venture to say something that I haven't seen personally.
"We are playing for everything this month [April], that's the reality, in La Liga, the Copa and the Champions League. We are waiting for the players to come back from international duty."
Marca reported on Thursday that Messi was back in training with Barca.
Per Goal's Ben Hayward, Messi missed Argentina's 2-0 defeat of Italy and 6-1 loss to Spain due to problems with his hamstring and right adductor.
The drubbing at the hands of La Roja highlighted just how creatively lacking the Albiceleste are without Messi in the side, although there is little he could have been expected to do about their woeful defending.
Barcelona are a more cohesive outfit than the Argentina national team and should be able to cope better without Messi should he remain on the sidelines.
The 30-year-old superstar is still the Blaugrana's most important player, though, and continues to contribute more than anyone to their success—in La Liga alone this season he has netted 25 goals and provided 12 assists in 28 appearances.
Barca's 11-point lead at the head of the top flight is big enough that Messi could miss all nine remaining games of the 2017-18 season and the Camp Nou outfit would likely still win the title.
However, the first leg of Barcelona's quarter-final tie against AS Roma in the UEFA Champions League takes place at the Camp Nou on Wednesday, and Valverde will be desperate for Messi to be back fit by then.