Mathieu to miss 6-8 weeks after knee surgery

"Jeremy Mathieu has been satisfactorily operated on this Thursday," Barca said in a statement.

"The player will be out for approximately six to eight weeks."

However, Mathieu tweeted that he is hopeful of being fit within four weeks.

"Thank you all for your messages and your support! See you in 4 weeks!!" He posted on his official Twitter account.

Mathieu's hopes of representing his country at this summer's European championships are also at risk after injuring a torn meniscus in his right knee during France's 4-2 friendly win over Russia on Tuesday.

He has an outside chance of being fit for Barca's Copa del Rey final against Sevilla on May 22 and the Champions League final six days later should they progress that far.

The 32-year-old has struggled to establish himself as a regular in coach Luis Enrique's starting line-up this season, but has still made 31 appearances in all competitions.