Kristoffer Olsson's move away from Arsenal was confirmed by the club earlier this month via their official website, beginning a new chapter in his career.
The Swedish international signed with Danish side FC Midtjylland, where he was already on loan.
News agency Reuters reported this week he suffered suspected fractured leg in training while with the Swedish national side, during the first session on a mid-season camp in Abu Dhabi.
Olsson has since spoken out on the devastating blow, in an interview with Swedish channel ViaSat Sport.
He said: "I was really scared and screamed in pain. I almost thought that the foot was off. It will take about three months to heal, if the rehab training goes as planned. But you never know. They say three months, but it may take two to four months as well."
It's tough news for the 19-year-old, who had previously been highly regarded at Arsenal, just failing to crack the first team.
For the Gunners it's one deal they may have been slightly fortunate on, for the injury would surely have prevented the move. They were on the other side with another Swede last year, when they signed Kim Kallstrom, only to discover he had a fractured back.
Looking at it the other perspective, should Olsson go onto become a top star, they may rue the unlucky timing which could have seen them never have to come to the decision to sell so soon.