Coach Pep Guardiola says the club will make a decision after receiving the latest information concerning the Grimsvotn volcano, with ash already causing delays to air travel in Scotland.
Guardiola says the club will not take any risks before Saturday's game against Manchester United. It had planned to travel Thursday.
Barcelona traveled to Italy by bus for last year's Champions League semifinal against Inter Milan after a separate eruption closed European air space. Barcelona lost the first-leg and eventually exited the series.
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