Arsenal has been more of a seller than a buyer in the transfer market since moving to the Emirates in 2006. 

In fact, Arsenal are the only Champions League qualifying club to have actually made money in the transfer window, with Arsene Wenger keen on developing young talent. 

Many a player has shone wearing the red and white of Arsenal, but been unable to recapture that form elsewhere. Here are the top five players who embody that fact:

Emmanuel Adebayor

Every Arsenal supporter loves to hate the Togolese hitman. From 2006 to 2009, the lanky striker paired up with two Arsenal greats, Thierry Henry and Robin van Persie, to spearhead the Arsenal attack. In his three years as a Gunner, he started the majority of Arsenal's games, and found the back of the net on 46 occasions. 

Following his selling to nouveau-riche Manchester City, Adebayor's goal tallies and appearances dwindled. He was ostracized from the squad an sent out on loan to Tottenham where he enjoyed reasonable success scoring 17 goals. This season, however, the man who scored 24 goals in 34 Premier League matches in 2007-2008 for Arsenal has only managed five goals in 17 starts for Tottenham after making his loan deal permanent.

Thierry Henry

It was close to impossible for Thierry Henry to match his Arsenal form after his move to Camp Nou. The all-time leading goal scorer for the Gunners was unstoppable during his tenure, winning four Golden Boots in North London. After his transfer to Barcelona, Henry wasn't the dominant goal scoring force, and hasn't broken the 20-league goals mark since. 

Playing on flank instead of through the centre may be part of the reason for Henry's dip in goal scoring, but as the years progressed at Barcelona Henry was pushed out of the starting lineup by Pedro, and has not been able to lead New York Red Bulls to any major trophies during his tenure in NYC.

Cesc Fabregas

The story of Cesc is a well-known one: bought as a teenager from Barcelona's academy, Fabregas was nurtured by Arsene Wenger into one of Europe's premier midfielders. The Spaniard was Arsenal's captain by the end of his term, but Arsenal eventually sold him back to his former club. 

Cesc's return to Camp Nou has not been a favourable one by many standards. A full-time player at Arsenal, the diminutive midfielder sits behind Xavi and Andres Iniesta in the midfield pecking order. An experiment as a false-nine ended poorly for Fabregas as well, as Barcelona still tries to find a position to fit him on the pitch. 

While his goal scoring has not suffered, that can be attributed to the fantastic quality of the players around him. Fabregas has been rumoured to be leaving Spain this summer, with AC Milan, Arsenal, and even Manchester United being speculated as possible destinations.

Samir Nasri

Nicknamed "Le Petit Prince" by the Arsenal faithful, Nasri was blossoming into one of France's best young midfielders when he was sold to Manchester City at the start of the 2011-2012 season. The former French Player of the Year dazzled with Arsenal in his final year and was named to the Premier League Team of the Year. 

The Frenchman's first season in the Eastlands was a fine one, helping City win their first Premier League trophy. However, Nasri has been less prominent this term, starting only just over half of City's matches. 

The French playmaker also had a prominent bust-up with manager Roberto Mancini, with the ex-Inter Milan boss calling Nasri out on his work-rate, which may have lead to Nasri's exclusion from important matches this season.

Alexander Hleb

Those who remember the Belarus international winger playing for Arsenal remember a pacey, silky smooth footballer who brought a creative flair to the side. 

Those who remember Alexander Hleb playing for Barcelona probably remember him as a benchwarmer. The ex-Stuttgart man was a first-team regular at The Emirates, lighting up the Premier League. However, after his switch to Barcelona, Hleb made a measly five La Liga starts, promptly being sold the next season. 

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