Sam to miss Barca clash

Sam will be out for several weeks after tearing a thigh muscle during the 2-2 draw with Stuttgart on Saturday.

"The medical check revealed a tear of a muscle bundle that means Sam, who had just recovered, will be out for several weeks," Leverkusen said in a statement.

The club are already without forward Eren Derdiyok after he stepped on broken glass at his home.

Sam had returned as a 72nd-minute substitute after being injured during the winter training camp and missing the first two league games of the year for last season's runners-up Leverkusen.

The 2002 Champions League finalists take on holders Barcelona on February 14 before travelling to Spain for the second leg on March 7.