Shakhtar Donetsk captain Darijo Srna believes Champions League opponents Barcelona showed why its regarded as the best football team.
It was the second time the Ukrainian side lost by the same scoreline during the tournament, with Arsenal defeating the club during the Group stage.
"There were some things in common with the game, but tonight we played better than in London," the Croatian international told Soccer.ru after the match. "The team we played against were also quite different.
"We did not deserve such a loss this evening. Before the game, I said Barcelona are the best team in football history, and they have now confirmed it.
The 28-year-old says the team will regather their thoughts and prepare themselves for the return leg.
"It is a pity given all our powers, but we still have a return match to play," he added. "We will gather our thoughts, show character and try to beat them at the Donbass Arena.
"It will be a difficult task."
Srna also believes the Blaugrana "will win the Champions League".
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