Barcelona's Lionel Messi controls the ball against Benfica's captain Maxi Pereira during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Lionel Messi controls the ball against Benfica's Bruno Cesar during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Carles Puyol grimaces after falling and sustaining an injury during their Champions League Group G soccer match against Benfica at the Luz stadium in LisbonReuters 
Barcelona's players celebrate after Alexis scored against Benfica during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Alves is challenged by Benfica's Gaitan during their Champions League soccer match in LisbonReuters 
Barcelona's Puyol and Benfica's Lima go for a header during their Champions League soccer match at the Luz stadium in LisbonReuters 
Barcelona's Busquets is challenged by Benfica's Gaitan during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Sergio Busquets and Cesc Fabregas challenge Benfica's Nemanja Metic during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Busquets controls the ball in front of Benfica's Gaitan during their Champions League soccer match at the Luz stadium in LisbonReuters 
Barcelona's Jordi Alba and Benfica's Eduardo Salvio fight for a header during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Francesc Fabregas and Benfica's Bruno Cesar fight for the ball during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Lionel Messi challenges Benfica's Ezequiel Garay during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Alexis is challenged by Benfica's Jardel during their Champions League soccer match in LisbonReuters 
Benfica's Matic is challenged by Barcelona's Rodriguez during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Alves gestures in pain next to Benfica's Gaitan during their Champions League soccer match at the Luz stadium in LisbonReuters 
Barcelona's Puyol and Alves jumps for the ball against Benfica's Gaitan during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Messi battles for the ball against Benfica's Jardel during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Lionel Messi controls the ball against Benfica's Jardel during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Francesc Fabregas celebrates after scoring a goal against Benfica during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Fabregas celebrates with Messi after scoring a goal against Benfica during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Fabregas celebrates with teammates after scoring a goal against Benfica during their Champions League Group G soccer match at the Luz stadium in LisbonReuters 
Barcelona's Carles Puyol grimaces as he is carried in a stretcher after falling and sustaining an injury during their Champions League Group G soccer match against Benfica in LisbonReuters 
Barcelona's Carles Puyol grimances as he is taken off the pitch after an injury as coach Tito Vilanova looks on during their Champions League Group G soccer match against Benfica at the Luz stadium in LisbonReuters 
Barcelona's Sergio Busquets receives a red card during their Champions League Group G soccer match against Benfica in LisbonReuters
Barcelona beat Benfica 2 - 0 in their Champions League Group G second match on Tuesday night but the victory was marred by captain Carles Puyol's injury.
Alexis Sanchez and Cesc Fabregas scored a goal apiece to ensure a win for Barcelona but defender Puyol, who has just returned to the team after nursing an injury, suffered elbow dislocation and was carried out of the ground on a stretcher in the 78th minute.
Alexis Sanchez scored the opener for Barcelona in the 6th minute from Lionel Messi's cross. Fabregas doubled the score in the 56th minute, sending Messi's pass into Artur's net.
Messi did not score on Tuesday night but he was the architect of both goals.
[PHOTOS OF BARCELONA VS BENFICA]
Benfica's striker Lima almost leveled the score in the first half but Victor Valdez denied him a goal with a brilliant save. The Portuguese team looked weak in the defense without Luisao, who is serving a two-month ban for pushing a referee in a friendly match.
Sergio Busquets was shown the red card just a few minutes before the match ended for basting the ball in a tackle with Maxi Pereira.
Puyol's injury is a big setback for Barcelona as he won't be available for the La Liga match against arch rivals Real Madrid at the Nou Camp on Sunday. The match against Benfica was his first game after recovering from a knee injury.
The win on Tuesday night has ensured six points for Barcelona on the score table of the Champions League 2012-13. They have three points from their opening match win against Spartak Moscow. On the other hand, SL Benfica has only one point on the table from their 0 - 0 draw with Celtic FC in the opening match.
