This article forms part of our Profit Players feature series, which is where Football Transfer Tavern takes a look at how well a player has fared since being signed or sold, using statistical figures and statements from pundits to prove how good of a deal the club managed to achieve.

Chelsea have fielded some world class players over the years, boasting frightening squads including the likes of Eden Hazard, Didier Drogba and Fernando Torres. However, no player comes close to perhaps the biggest club icon that is Frank Lampard.

He's constantly included in the debate over who was the best English midfielder and most of the time, he wins. The Romford boy had it all. Lampard set records for both club and country, drove Chelsea to the heights of the most prestigious silverware and now holds the reins of his beloved club where he stands as manager.

This all came from what is viewed these days as buttons. The Blues secured perhaps the biggest bargain of their history when they signed Lampard back in 2001.

After spending all but one year of his junior and senior playing days with West Ham, the midfield maestro shook on a deal that would transform Chelsea Football Club. All for the minimal fee of £11million (via The Guardian).

Lampard spent 13 years with the West London side and made a total of 648 appearances across all competitions. His phenomenal 210 goals scored remains the club's highest amount in its history, with only Bobby Tambling coming close with 202.

Now 42, the Stamford Bridge legend can look back on a glittering career, dripping in silverware. Lampard won four FA Cups, three Premier League titles, one Champions League title and was crowned Footballer of the Year in 2005 (via Transfermarkt). But he isn't done with helping his side win trophies.

After his first season at the hilt of the club he once played for, he is now hoping he will be just as successful as the manager. Big and exciting things are certainly underway at Chelsea with this man in charge. Not only did £11m buy the Blues a world class player, but potentially a world class manager too.

Blues fans, what are your favourite memories of Frank Lampard as a Chelsea player? Let us know in the comments below!