De Mooij joined the Dutch side as a schoolboy in 2013 and signed an official contract in 2018.
But he's decided to leave football behind in an attempt to pursue a 'second dream' studying medicine, starting in September.
The midfielder announced his decision on Instagram in a statement which reads: "When I was scouted by Feyenoord in 2013 and later signed my first professional contract, my dream of becoming a professional footballer came true.
"After 7 great years at Feyenoord, I informed Feyenoord today that I will leave the club to make my second dream come true, namely to become a doctor. I will start my medical studies in September of this year.
"Thank you Feyenoord, the staff of Feyenoord Academy and Key Sports for the wonderful training and guidance I have received from you.
"And for my teammates: thanks for the friendships and everything we have been through together!"
Splinter de Mooij has announced that he is leaving Feyenoord at the end of the season.
The 19-year-old midfielder is following his dream to become a doctor.
- Dutch Football (@FootballOranje_) April 30, 2021
Gazetto dello Sport reports about Splinter de Mooij's choice to get his medical degree. pic.twitter.com/NQRYFb0Jrh
- Feyenoord Youth Watcher (@Varkenoordfan) May 1, 2021
An incredible decision to be made at such a young age.
The 18-year-old attacker, who's scored for the Italian Under-17 team and been capped at Under-18 level, was most recently signed to Serie B side Pescara. Before that, he spent time as a youth player at AS Monaco.
However, this doesn't mean the end of Arlotti's career necessarily.
The idea of promising athletes gaining college scholarships is of course common in US sports, unlike Europe.
Alessandro Arlotti, 18, has decided to quit his football career after discovering he got a place at Havard University. The young man was from Monaco and had represented Italy U17's @CornelWest pic.twitter.com/DISP1NX0EU- Anwarovic (@Anwarovic13) March 18, 2021
But Harvard University is far more renowned as a respected seat of higher education than a destination for future sports stars.
So presumably Arlotti has decided his future lies in learning rather than football for the time being.
Young footballers showing maturity of this level deserves to be commended.
We wish Splinter and Alessandro all the best in whichever career they follow.
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