Chelsea's signing of Mateo Kovacic as part of Thibaut Courtois' switch to Real Madrid; landing a World Cup finalist to help bolster Maurizio Sarri's new midfield ideology while separating from an unhappy member of the squad, would usually bring with it a sense of optimism.
A tidy playmaker whose time in the Spanish capital, although maybe not headline making, was one which housed many moments of brilliance - including lifting three consecutive Champions League trophies under the stewardship of Zinedine Zidane.
However, in west London, the outlook for some is bleak, and that is a catalysed by the finer details of the 24-year-old's agreed season-long loan move to Stamford Bridge.
According to Goal's Nizaar Kinsella on Twitter, Los Blancos were reluctant to allow Kovacic to depart the Estadio Santiago Bernabeu this summer at all, although Florentino Perez and co. eventually succumbed to Chelsea's demands to force the Courtois move over the line.
On completing his switch, the deep-lying creator stated via his official Twitter account: "I am really happy and excited to be here Chelsea.
"It is a privilege and an amazing feeling to be part of this club and I can't wait to start with trainings and matches. I will try to do my best for this club and hope to bring joy to our fans."
I am really happy and excited to be here @ChelseaFC. It is a privilege and an amazing feeling to be part of this club and I can't wait to start with trainings and matches. I will try to do my best for this club and hope to bring joy to our fans. pic.twitter.com/OMydrc2i3j— Mateo Kovačić (@Mateo_Kova23) August 9, 2018
However, as reported by The Sun, there is one, somewhat significant, underlying issue; the Blues have no option to make the move a permanent one at the end of the year, meaning - despite the Croatian's reported unrest at the lack of game time in Spain - he will return to Madrid following his temporary spell in the Premier League.
Understandably, with Sarri's outfit losing one of the world's top goalkeepers, although record-breaking Kepa Arrizabalaga arrives with a bright future, the Chelsea fans were less than impressed with their club's business and flocked to Twitter to share their grievances.
Here are some of the best tweets...
So basically we’re developing a player for Madrid. Great.— Daniel Lee (@blue_untilIdie) August 9, 2018
Problem is if he has a great season then Real won't want to sell him and we'll just be sending them back a better player. Modric is 32/33 now. Kovacic is his long term replacement, much rather give Ruben the game time than someone who is going to leave at the end of the season.— Jack (@MrJackGB) August 9, 2018
Ridiculous, if true! We held the cards and should have insisted there was an option! They would have done pretty much anything to secure Thibo by the sounds of it!— Aaron Brown (@brownaaronuk) August 8, 2018
Would prefer to use our own talent like Loftus-Cheek instead of developing a player that will leave— Tommy Pitchley (@PitchleyTommy8) August 9, 2018
Huge potential, but shameful from the club not to acquire an option to buy. Basically babysitting a player and stifling the development of our homegrown talent. Hope RLC keeps him out of the team.— JMCC (@this_is_james) August 9, 2018
So? This transfer is nonsense!— Josip (@Josip37) August 9, 2018
What's the point of this loan move. Real are so shrewd. Sarri might take a season to settle at Chelsea. This loan move will not help him as he will need the same player to continue his project or ambition.— Tom Brady 🇦🇷🇦🇷🇦🇷 (@Tom1236el) August 8, 2018
then why bring him in the first place to block RLC's and Barkley's development?— Trumah Bayel (@gudrichie) August 8, 2018
Most pointless deal weve done in years— Connor drake (@Chelseadude39) August 9, 2018
And it did not stop with the fans, with The Independent's Ed Malyon also questioning Chelsea's methods.
No permanent option in Kovacic deal, so Chelsea are just developing players for Real Madrid while Loftus-Cheek and co sit on the sidelines 🙃— Ed Malyon (@eaamalyon) August 9, 2018
Although, others believed it was still a shrewd bit of business.