Arsenal failed to continue the pursue of winning the europa championship because they have plans of winning the Premier league which is the most important aim for them. At first in the Europa League they were doing very well but because of too much pressure they couldn't maintain good performance in europa.
It’s very disappointing Arsenal got eliminated from the Europa league. I think Arteta didn't show much interest in the Europa league title when they faced Sporting almost a weak ago, I really don't like the idea of intentionally dropping out of cup competitions with the aim of keeping the squad fit for a particular trophy (EPL), now how will Arteta face the world if Arsenal fail to win the premier league title.