Sad!!!!!! The youngest professional footballer to retire from football.

Abdelhak Nouri is a Dutch former professional footballer who played as a midfielder for Eredivisie club Ajax and considered the youngest professional retired footballer after collapsing and  suffering severe and permanent brain damage in a friendly match against Werder Bremen on 8th. July 2017.  Nouri operated primarily as an
attacking midfielder , but could also be deployed as a winger.

At age 20, Nouri could not continue to play professional football again due to the severe brain damage he suffered which Ajax in June 2018, announced that an investigation had found that the medical treatment Nouri received on the field was "inadequate",  which prompted a lawsuit from Nouri's family against Ajax through the Royal Dutch Football Association 's arbitration panel, who stated a failure to resuscitate him with due haste was responsible for causing his brain damage.
Following Nouri's retirement, several tributes were conducted in his honor by Ajax and players at other clubs.

  In December 2018, Ajax renamed their "Talent of the Future" award for Nouri, while a number of Nouri's former Ajax and Dutch teammates, including Justin Kluivert , Philippe Sandler , Amin Younes , and Kevin Diks , have adopted Nouri's shirt number (34) at their new clubs. The club's 34th league championship was dedicated to Nouri.

Nouri was a youth exponent from the academy at
Ajax , and made his professional debut for the reserve side, Jong Ajax , on 13 March 2015, in a
Eerste Divisie game against VVV Venlo , replacing
Danny Bakker after 78 minutes in a 1–0 loss.