Liverpool legend Jamie Carragher feels nothing has changed at Arsenal.
Carragher wrote in the Daily Mail: "Watching them crumble against Borussia Dortmund on Tuesday night, it was impossible to escape the conclusion that they aren't learning.
"For a decade now, Arsenal have been unable to contain opponents who go with a fast, physical gameplan. Everyone knows how to play against them.
"When I watch Arsenal now, I get frustrated. They play the same way wherever they go - with their full-backs pushed up high and wide - and get caught on the counter-attack. They are the away team! They should be doing that to the home team when they go travelling.
"Why don't they learn? It is unforgivable that this keeps happening."
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