© EuroFootball.com
Defender Gabi Milito, who suffered a thigh injury, will be out of the lineup for about a month.
The footballer was injured in Saturday's Spanish league match against "Real Sociedad," which Barcelona unexpectedly lost 1-2.
The team coach Pep Guardiola, apart from Milito's injury, could not boast a full lineup of defenders, as Eric Abidal, Adriano, and Maxwell are also out of the game due to various health problems.
On Tuesday, "Barcelona" will face Madrid's "Real" at home. It will be the second leg of the Champions League semi-final.