No doubt, Arsenal have developed numerous youngsters that have turned world-class material. Manager Arsene Wenger is famed for this.

Hector Bellerin is the latest sensation that Wenger has helped grow into a multimillion-dollar project aside past stars like Cesc Fabregas, Robin van Persie, Theo Walcott etc. However, for any of these stars, there are several prodigies that turned into “failures.”

Nicklas Bendtner is one failed project, and Arturo Lupoli grew alongside him. Lupoli, an Italian, was a rising star as well but he only played once in the Premier League before he was sent off to the Serie A in 2007. He struggled there as well, playing in different clubs on loan before he was relegated to the Serie B. He seemed to find his level there as he has played for various sides there.

Former Everton player Francis Jeffers is referred to as one of the worst Arsenal signings after the layer failed to deliver at al despite Wenger splashing £10 million far back in 2001. The highly rated player eventually left in 2004 but continued his poor spell in nine different clubs before his retirement.

Fran Merida was touted as the next big thing to tow the path of Fabregas but he struggled to get a shirt until he left the Emirates. His spell in Spain did not yield fruit as well with him playing for Hercules, Atletico Paranaense and Osasuna.

Jermaine Pennant cost millions of Pounds as far back as 1999 but the former Notts County star spent seven years picking up bare 12 appearances in the Premier League. He spent ten years in ten different clubs yet he never reached the level Arsenal expected when they signed him.

There are several others like Brazilian Denilson, Justin Hoyte, Henri Lansbury and others. How they remained at the club despite poor performance for such a long period is baffling.