The defeat was the second on the spin in the competition for the German champions, who went down 2-1 at Rangers in their opener last month.
"We knew it would be tough before the game," Veh told www.vfb.de after second-half goals from defender Carles Puyol and forward Lionel Messi earned the Catalan outfit the points. "Barcelona are very strong at the moment, and we have a couple of problems. We saw that they are game technically very good."
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