Mikel Arteta has called on his Arsenal players to "keep fighting" for the rest of the season after last year-s finalists were dumped out of the Europa League by Olympiakos on away goals. Youssef El-Arabi scored in the dying seconds of extra time to give the Greek side a 2-1 victory at the Emirates Stadium, meaning the last-32 tie ended 2-2 after the second leg.

Pierre-Emerick Aubameyang-s acrobatic finish in the second half of extra-time appeared to have put Arsenal on course for qualification after Pape Abou Cisse-s header had sent the tie into an additional 30 minutes. But the last-gasp winner brought a premature end to Arsenal-s European campaign and Arteta must lift his side for a push to qualify for the Champions League through the Premier League. The club, unbeaten in the league since December, are ninth in the table, seven points behind fourth-placed Chelsea. Asked about the difficulty of finishing in the top four, Arsenal manager Arteta said: "It is very hard because looking at the table we-re still far from the objectives that we all have, but we-ve been far all season from it and we have to keep fighting.