Leverkusen's Sam sidelined for Barca opener

Bayer Leverkusen midfielder Sidney Sam will be out for several weeks after tearing a muscle 12 minutes into his comeback on Saturday and will also miss the Champions League round of 16 clash against Barcelona, the club said on Sunday.

"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.

Sam had returned in the 2-2 draw against VfB Stuttgart 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.