What is 2017–18 UEFA Europa League?
{{Infobox international football competition | tourney_name = UEFA Europa League | year = 2017–18 | image = Parc OL.jpg | size = 275 | caption = The [[Parc Olympique Lyonnais]] in [[Décines-Charpieu]] hosted the final | dates = ''Qualifying:''<br />29 June – 24 August 2017<br />''Competition proper:''<br />14 September 2017 – 16 May 2018 | num_teams = ''Competition proper:'' 48''+8''<br />''Total:'' 157''+33'' | associations = 55 | champion_other = {{flagicon|ESP}} [[Atlético Madrid]] | count = 3 | second_other = {{flagicon|FRA}} [[Olympique de Marseille|Marseille]] | matches = 205<!--Starting from group stage, exclude qualifying rounds and play-off round--> | goals = 556<!--Starting from group stage, exclude qualifying rounds and play-off round--> | attendance = {{#expr: <!--Group A-->+ 14670 + 13035 + 17215 + 11865 + 10350 + 15634 + 7934 + 18403 + 29800 + 6874 + 12613 + 14198 <!--Group B-->+ 24893 + 13004 + 0 + 3300 + 6300 + 21789 + 12659 + 10077 + 100 + 20568 + 14678 + 8209 <!--Group C-->+ 15714 + 6804 + 6155 + 10376 + 8623 + 21167 + 7544 + 5214 + 10054 + 7520 + 7814 + 5241 <!--Group D-->+ 31409 + 5932 + 16954 + 23917 + 20812 + 20690 + 40538 + 7912 + 17932 + 17100 + 23133 + 8021 <!--Group E-->+ 14490 + 5134 + 27715 + 27034 + 27159 + 13803 + 48103 + 5658 + 17431 + 26972 + 13925 + 4237 <!--Group F-->+ 4499 + 17285 + 10065 + 5070 + 10500 + 6245 + 10118 + 16189 + 10696 + 5485 + 4682 + 14246 <!--Group G-->+ 14752 + 20714 + 10314 + 2680 + 2530 + 15117 + 9483 + 27134 + 3011 + 10197 + 10542 + 13231 <!--Group H-->+ 40284 + 59359 + 45300 + 13100 + 11783 + 50327 + 45200 + 58285 + 12000 + 45300 + 51364 + 25909 <!--Group I-->+ 8649 + 13972 + 11832 + 21116 + 23354 + 13359 + 8773 + 14181 + 18000 + 6474 + 23865 + 9040 <!--Group J-->+ 5097 + 28832 + 32462 + 8009 + 7870 + 9521 + 32354 + 20358 + 7754 + 38928 + 8428 + 15686 <!--Group K-->+ 9072 + 19867 + 300 + 15006 + 21386 + 9488 + 21327 + 17906 + 20274 + 8226 + 8845 + 17564 <!--Group L-->+ 111