Lionel Messi, Cesc Faregas, FC Barceklona
Champions League Update
Messi scored his 11th goal of the 2013-14 campaign before being forced off after 28 minutes.
Scans on Sunday confirmed he would miss "two to three weeks".
"Leo Messi has a small injury to the biceps femoris [thigh] in his right leg," a Barcelona statement read.
"This was confirmed by medical tests undertaken by the player on Sunday morning at Medical Services Sport City. The Argentinian will be out for approximately two to three weeks, which will certainly force him to miss Barcelona's two games this week – on Tuesday against Celtic and next Saturday at the Camp Nou against Valladolid."
The news will be welcomed by Neil Lennon's Celtic, who sprang one of the surprises of last season's Champions League group stage when Tony Watt's late winner inflicted a rare defeat on a Barça side that did include Messi that night.
Messi's injury overshadowed Barcelona's win over Almeria, which ensured a club-record seventh straight win to begin the La Liga Primera Division campaign.
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