The Blues have earned a reputation for signing young players and loaning them out in recent years, and Dutch side Vitesse have been one of the beneficiary clubs from that. The likes of Tomas Kalas, Patrick van Aanholt, Bertrand Traore and Gael Kakuta have all spent time with the Eredivisie club.
Former Sao Paulo playmaker Piazon, 20, joined the Blues in 2012 before being farmed out on loan to Malaga and then Vitesse, notching 11 goals and 10 assists during those two loan spells. Now, he becomes the latest player to be loaned out by the club to the Bundesliga.
Eintracht Frankfurt, who finished 13th in the German top flight, have swooped to sign Piazon on a season-long loan deal. Piazon becomes the third played to be loaned to a German club this summer, following Kalas (Koln) and Thorgan Hazard (Borussia Monchengladbach) to the Bundesliga.
To loan three of the club's most highly rated young players to three clubs in the same division may seem somewhat peculiar, but the World Cup showed that player development in Germany is at an all-time high - and Chelsea could well be looking to benefit from it.
With one of the most competitive divisions in Europa and top level coaching, it's no surprise to see a club try to reap the rewards of German football's surge to the summit of world football. After all, the 2013 Champions League final was contested by two German clubs, and the World Cup was clinched by Joachim Loew's side.
Kalas, Hazard and Piazon will be hoping that their spell in Germany will ultimately prove that they can feature for Jose Mourinho's side on a regular basis in the future - and that would mean doing what Kevin de Bruyne couldn't, having failed to win a place in the Chelsea team after his spell with Werder Bremen.
With first team football almost impossible right now, playing in Germany could well be the next best thing for these Chelsea youngsters.