Chelsea have allowed Christian Atsu to join Malaga in La Liga until the end of the season, taking the Blues’ tally of on-loan players to an astonishing 33 players.
The extensive list of youngsters plying their away from Stamford Bridge includes some who have spent their entire careers contracted to Chelsea, but is the west London club’s preference to entrust other teams with developing so many of their budding stars a sensible model?
The following players indicate the Chelsea hierarchy might need to reconsider how they help young talent make the transition from the youth teams to senior football.
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Having spent more than ten years at Chelsea, it would not be a stretch to say the young Frenchman wasted a decent chunk of the most important years of his career playing away from Stamford Bridge.
Kakuta managed just six league appearances for the Blues between 2007 and 2015 while spending the bulk of these years trying to prove his worth to London club on-loan, albeit to no avail.
The 24-year-old never looked truly capable of earning his place at Chelsea and finally cut his ties with the club when he was released last summer. He has gone on to join Sevilla and made just three senior appearances to date.
Marin, who joined Chelsea from Werder Bremen in April 2012, has made virtually no progress in his bid to break into the senior squad over the course of four years and as many loan spells.
The German international has stepped onto the pitch in a Chelsea shirt just six times between his spells away from Stamford Bridge, and the club is seemingly prepared to show him the door by inserting an option to buy in his current loan contract with Trabzonspor.
The Nigerian arrived in west London from Wigan Athletic in August 2012 following protracted negotiations between the two clubs – a saga which seems entirely unnecessary now given he looks to be surplus to requirements.
Moses has not made a single appearance for his parent club since his debut season in 2012-13 and is currently on-loan for the third time in three years, a situation which is doing little to improve his consistency.
Considered by some to be a handy winger on his day, Moses' performances for West Ham have indicated he has too many off days to be considered first-team material at Chelsea.
Is it all bad for Chelsea's loanees?
Not every Chelsea player who has spent more time wearing another club's shirt has ended up with nothing to show for it, though.
The 20-year-old has become a relatively important figure at Watford after he was loaned out to Vicarage Road this season.
Although Ake has primarily functioned as a left full-back under Hornets boss Quique Sánchez, he can also comfortably play in the heart of defence or as a holding midfielder.
The Dutchman, who joined the Chelsea youth setup as a 15-year-old in 2011, has made only six Premier League appearances for the Blues, but some would suggest the maturity he has displayed at Watford could warrant consideration for the senior squad next season.
Spending his second consecutive season on loan at Middlesborough, Kalas has proven he can be a more than useful defender at Championship level.
The 22-year-old Czech is a versatile defender who is capable of playing either at right full-back or centre-back with equal ability, although his tackling, speed and ability to read the play is more suited to a central position.
Kalas has made only two Premier League appearances for the club since joining in 2010, but the club appears to have plans for him in the future by tying him down to a five-year contract in July 2015.
Chelsea signed the Egyptian winger from FC Basel in January 2014, barely a season after he tortured the Blues in a Champions League meeting during May 2013.
Salah, blessed with electric pace and deft ball control, has struggled to find the consistency required of a Chelsea player and subsequently been loaned out twice since arriving at Stamford Bridge, first to Fiorentina and then Roma.
The promising wide man has shown flashes of the brilliance which enticed the Londoners to secure his services, however, it remains to be seen whether he will be given a chance to string together some strong performances for his parent club in the near future.