Barcelona have confirmed that left-back Adriano will miss up to six weeks with a hamstring injury sustained in their Liga match with Rayo Vallecano.
The Brazil international was replaced by Dani Alves in the 23rd minute of the tie, after injuring himself by diving to connect with a pass from team-mate Andres Iniesta.
Barcelona subsequently confirmed that the player will spend a spell on the sidelines via its official Twitter account.
"Adriano suffered a hamstring tear in his right thigh. [The] approximate time out [will be] between four and six weeks," they wrote on the website.
Barca went on to win the home clash against Rayo 3-1 thanks to an opening goal from David Villa and two goals either side of half-time from prolific goalscorer Lionel Messi.
The 28-year-old now looks set to miss both legs of his side's Champions League tie with Paris Saint-Germain, as well as the Liga meetings with Celta Vigo, Mallorca and Zaragoza.