The veteran playmaker picked up the injury in his club's Liga clash with Atletico Madrid on Saturday but it is not expected to jeopardise his participation in the World Cup
Barcelona have confirmed that midfielder Xavi will be out of action for a week with a back sprain.
The Spain international suffered the injury in his club's 1-1 draw with Atletico Madrid at Camp Nou on Saturday but it should not jeopardise his participation in his country's World Cup opener against Netherlands on June 13.
"Xavi noticed a pain in his back after Saturday's game and tests this morning [Monday] revealed a lumbar sprain, which will rule him out for about a week," a Barcelona statement read.
"The club's medical services have informed the RFEF (Spanish Football Federation) doctors of the situation in order to coordinate the recovery once the Spanish national team get together for the World Cup preparations."
Xavi has been capped 130 times by Spain, who will also have Chile and Australia for company in World Cup Group B.