The 20-year-old, who has featured in Barca's last seven matches, suffered the injury during training on Sunday morning and, according to the Catalan giants, is set to be missing for between 15 and 20 days.
That means Bartra could miss up to six matches, including this week's Champions League trip to Spartak Moscow.
ou know I have this image in my mind that one day I'll be trying to get over my Mata heartbreak by writing a list of thing I don't like about him, getting about halfway through reading it aloud and breaking down like Julia Stiles.
f we are going to play Ox in CM then IMO Gnabry needs to be on the right. We had no outlet at all yesterday and were thankful that Kos and Mertesacker were so good. We invited far too much pressure and we cannot afford to do that next week. I would like to see Flamini back with Arteta and Ox,Cazorla and Rosicky behind Giroud. As for Spurs they showed a lot more fight than Utd did.