Samuel Umtiti took part in Barcelona's training session on Tuesday as the centre-back continues his recovery from a hamstring injury.
Umtiti was expected to miss up to eight weeks of action, but enjoyed a return to the training ground sooner than might have been expected.
Ernesto Valverde's side are next in action on Thursday at home to Celta in the second leg of their last-16 Copa del Rey tie – the first leg having ended 1-1 – but Umtiti is not expected to be available.
Barca's new record signing Philippe Coutinho – out for three weeks with a thigh injury – was also present as the former Liverpool attacker met his new team-mates.
Aregentina boss Jorge Sampaoli was a visitor at Tuesday's session, speaking to Valverde and keeping an eye on his charges Lionel Messi and Javier Mascherano.