Barcelona attacker Alexis Sanchez says that when he becomes truly confident he will further improve as a player.
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Sanchez has scored 26 goals in 80 games since his £30 million arrival from Udinese in summer 2011, and has on occasion been whistled by fans at the Camp Nou frustrated by some erratic decision making and poor finishing.
The Chilean admitted to La Tercera in his home country that he sometimes lacks calm at vital moments.
"I believe I am not feeling fully confident," Sanchez said. "There are games when I get too excited in some moves."
Sanchez said he was not concerned as he knew he had the backing of both Blaugrana coach Gerardo Martino and his team-mates.
"I have the confidence of the coach and the team, which makes me feel good on the pitch," he said. "I have not yet reached the height of my potential."
Meanwhile, Alex Song is considering a move away from the Camp Nou, having grown frustrated at his lack of first-team opportunities so far this season, according to AS.
Cameroon international Song played 34 times for Barca last season following his €20 million move from Arsenal in the summer of 2012, but has just one start and one substitute appearance so far this term. The Spanish sports paper said he is concerned by the situation ahead of next summer’s World Cup in Brazil.