article_snippet: Arsenal officially had 1,200 fans in the Stade Louis II — but an estimated 5,000 were in the 18,000 crowd with Monaco having put the tickets on general sale.
article_snippet: Five thousand Arsenal supporters packed in to Stade Louis II Stade Louis II for Five thousand Arsenal supporters tie against Monaco on Tuesday .
highlights_snippet: Five thousand Arsenal supporters were estimated to be in Stade Louis II .