Barcelona slumped to two consecutive defeats as Ajax won their Champions League tie and Athletic Bilbao sealed a 1-0 win five days later.
The team has lost the lead in the La Liga, but defender Dani Alves urged his teammates to ignore media talk and concentrate on working under new manager Gerardo Martino.
"If you worry about what is coming from the outside then you are lost. If doubts are left out we will continue to the top," said Alves.
The Brazilian claimed what followed Barca's double upset were groundless attacks.
"If we lose it's news all day. And if we lose twice rockets are thrown everywhere," concluded Alves.
He said the Catalan club was compared far too often with Pep Guardiola's team that snatched 14 trophies in four years.
"The problem is that people want to compare us with Pep and the six cups, and that cannot be," explained the 30-year-old.
"The squad still has the same desire to win but every year it becomes more difficult so it's important to give value to the victories."
Alves, who's sidelined with a calf injury, stated he aimed to take his time rather and fully recover rather than worsen other related injuries.
Barcelona meet Cartagena in a Copa del Rey tonight and are still without Lionel Messi who could be absent for the remainder of 2013 with a thigh injury.
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