Manchester United's newcomer Matthijs de Ligt was previously rejected by the Red Devils for a bizarre reason.
On Monday, both De Ligt and Noussair Mazraoui were confirmed as the third and fourth signings of Erik ten Hag's side this summer.
The Dutchman was signed to a five-year contract with an option to extend his deal for another year, while his deal is reported to cost £38.5m with £4.27 in add-ons.
However, it has been reported that Manchester United could have signed the Netherlands international for a much lower price in the summer of 2018.
Despite being considered one of the hottest prospects in Europe, de Ligt's deal was turned down because one of their scouts believed he would become too fat, based on the genetics of his father.
The Red Devils have been eager to sign a top-class defender for a few years, with both Jose Mourinho and Ole Gunnar Solskjaer attempting to sign one, but their efforts were often rejected by the board.
At the time, 19-year-old Matthijs de Ligt was highly valued and considered one of the best prospects in Europe on United's radar.
But according to The Mirror, the Red Devils turned down an opportunity to sign the Dutchman, after a scout who recommended him, warned the club about the defender's genetics.
Marcel Bout - previously recruited by Louis van Gaal during his time at Old Trafford - cautioned against the transfer because he was concerned the player could gain weight as his father, which could lead to him losing his pace and power.
It appears that Manchester United's decision did not turn out to be successful, as in the following season, the Dutchman captained and led his side to the semi-final of the Champions League, defeating big names such as Real Madrid and Juventus along the way.
The fear within the Red Devils members led to the Ajax academy product leaving the club to join La Vecchia Signora in 2019.
However, under Erik ten Hag's management, Manchester United were keen to sign the players, holding talks throughout the entire summer.
The 25-year-old player is set to reunite with his former coach and seems excited about the move, saying: 'As soon as I heard that Manchester United wanted me, I felt an excitement about the opportunity for a new challenge at such a historic club.'
SMHellas
373
Marcel Bout was clearly biased against him. His argument was basically that the kid's dad is fat so he will be too. Absolutely preposterous
OLAGYDE004
253
As a United fan this is our best signing of the season.