(CNN) -- Smarting from their first back-to-back defeats in nearly three years, Barcelona are on the defensive for a change as they approach Tuesday's Champions League semifinal second leg against Chelsea. Barcelona all but surrendered the Spanish league title with Saturday's 2-1 home loss to Real Madrid that came days after a 1-0 defeat at Stamford Bridge in the first leg. Barca defender Gerard Pique strongly rejected any suggestion that his club might be in the midst of a more deep-seated crisis, and that the losses could signal the beginning of the end of a glittering era. "A team that has won 13 trophies in three and a half years deserves more credit than that," he said. "Other teams need to win more championships before we start talking like that. We deserve respect."
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Barcelona head into Champions League semifinal second leg against Chelsea trailing 1-0
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Pep Guardiola's team have lost back-to-back matches for the first time since May 2009
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Barca could recall defender Gerard Pique for Tuesday's game
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Chelsea coach Roberto di Matteo insists his team will try to score
"I don't know if this is the most important moment of my career as a coach," @placeholder said of the Chelsea game.