 In 1990 , Monaco sent scout Arnold Catalano to watch Henry , then at the age of 13 in a match . Henry scored all six goals as his side won 6 – 0 . Catalano asked him to join Monaco without even attending a trial first . Catalano requested that Henry complete a course at the elite Clairefontaine academy , and despite the director 's reluctance to admit Henry due to his poor school results , he was allowed to complete the course and joined Arsène Wenger 's Monaco as a youth player . Subsequently , Henry signed professional forms with Monaco , and made his professional debut on 31 August 1994 , in a 2 – 0 loss against Nice . Although Wenger suspected that Henry should be deployed as a striker , he put Henry on the left wing because he believed that his pace , natural ball control and skill would be more effective against full @-@ backs than centre @-@ backs . 
