In 1988, when Arsene Wenger was getting in his stride as Monaco manager, he revealed in an interview with a local newspaper that he did a master's degree in economics because it gave him a 'way to understand what was going on around me'. The 65-year-old must now wrap his head around how Arsenal were eliminated from the Champions League in the last 16 for the fifth year running, despite a 2-0 win against his former club that left it 3-3 on aggregate. Wenger's return to Monaco was not as romantic as he would have liked as no banners were unfurled at the Stade Louis II and few pleasantries were exchanged during a match that saw Arsenal win the battle, but lose the war. Arsenal manager Arsene Wenger's return to his former club Monaco ended in a 2-0 win that saw his team go out 3-3 on aggregate . Wenger cut a frustrated figure even though his team won 2-0 against Monaco as they were dumped out of the Champions League . Wenger holds his head in his hands (left) and gestures (right) as Arsenal failed to overturn the 3-1 deficit from the first leg . Wenger leaves the pitch following their exit from the Champions League at the last 16 stage for the fifth year running . Wenger will analyse his team's performance in the Champions League this season after being dumped out in the last 16 again . Wenger leaves the pitch as Arsenal were dumped out of the Champions League last 16 by his former club Monaco . Read chief sports writer Martin Samuel's match report from the Stade Louis II . Arsenal's exit on away goals means Wenger must now  focus on qualifying for next year's competition and little can be made in mitigation for being denied a place in the quarter-finals by a team sitting fourth in Ligue 1. 'We have gone out in the last 16 in the last four years, but twice against the future winners,' Wenger said ahead of the match, though it would take some doing for Leonardo Jardim's Monaco to become the third eventual European champions to boot Arsenal out. Wenger is sure to analyse his team's exit and it was in that same interview with Monaco-Matin some 27 years ago that he revealed his habit for making sure he watches at least half an hour of football every evening, among other interests. 'I read a lot, all sorts of books because you have to be conversant in a larger and larger amount of things,' the then-Monaco manager  said in 1988. 'For example, I follow closely what is being released in the book store, be it in French, in German or in English. I take notes by hand. I do not know how to type. I have watched a lot of matches. 'This is part of continuing to grow [as a manager]. You take a step back from your football and you analyse the practices elsewhere. 'I have at least 250 [video cassettes]. Every evening, at home, I watch a game for about half an hour. Often, it is the opponent that we are about to play, sometimes, it is just for enjoyment. Bayern [Munich] vs Real [Madrid] for example.' Watching this match will not make for pleasant viewing for Wenger, however, as his first competitive return to a city famous for its casino and where one in three people are millionaires saw Arsenal leave empty-handed. Wenger got off to a flyer as Monaco manager, winning the Ligue 1 title in 1988 to put the lid on a fine first season . Wenger worked with some huge names in Monaco and is pictured giving instructions to Jurgen Klinsmann who played there from 1992-94 . English pair Mark Hateley (left) and Glenn Hoddle arrived at Monaco in 1987 . Wenger was in charge when Belgian playmaker Enzo Scifo joined Monaco from Italian outfit Torino - he won the title in 1997 after Wenger left . Wenger was hoisted high after guiding Monaco to the French Cup in 1991 - they beat Marseille 1-0 at the Parc des Princes in Paris . Wenger puts his players through their paces - making full use of the security barriers in the Stade Louis II in 1992 . This one goes back a bit - it's Wenger playing AGAINST Monaco for Strasbourg during a league game in 1978 . Midfielder Marcel Dib hugs Wenger after Monaco made the final of the 1992 European Cup-winners' Cup by beating Feyenoord on away goals . Wenger kitted out for sessions in charge of his Monaco players - that adidas gear (right) goes down a storm now with lovers of all things retro . It would be fair to say Wenger had some hair-raising moments during his time at Monaco - if this picture from 1987 is anything to go by . Wenger with Johan Cruyff - the Dutch legend was manager of Barcelona when the current Gunners boss was in charge of Monaco . Wenger's assistant Jean Petit was well named when sitting next to his boss in the Monaco dugout. Purple shell suits? Definitely 1989 . This was Wenger during his first match in European competition as Monaco manager - a victory over Valur Reykjavik in 1988 .
Arsene Wenger's Arsenal won 2-0 against Monaco in the second leg of their Champions League tie . It was not enough as Arsenal lost on away goals as the last 16 tie ended 3-3 on aggregate . Arsenal have exited the Champions League at the last 16 stage for the fifth consecutive year . Wenger was Monaco manager between 1987 and 1994, winning Ligue 1 in his debut season .