Hull City have announced the unfortunate news that midfielder Ryan Mason has had to retire from football aged just 26 due to the head injury he suffered last season.
Just over a year ago, in a 2-0 defeat at Stamford Bridge, Mason was involved in a sickening collision with Chelsea centre-back Gary Cahill and was forced off on a stretcher wearing an oxygen mask.
It soon emerged that the former Spurs midfielder had suffered a fractured skull and was rushed to St Mary's hospital in London for emergency surgery.
Having been on the sidelines for the rest of 2017, Mason ended the year on a high when he welcomed the birth of his son, George.
He had remained optimistic to return to football but Hull have confirmed that specialists have advised Mason to not continue playing competitively and he has therefore had to retire with immediate effect.
"It is with deep regret that the club has to announce that, following the head injury suffered on 22nd January 2017, Ryan Mason is to retire from football with immediate effect," an official statement read.
"Ryan has sought the guidance of numerous world renowned neurologists and neurosurgeons who have all advised that a return to competitive football is not advised.
"Ryan would like to put on record his thanks to all at the club who have aided his recovery to this point and he his is indebted to them for their support and compassion over the past 12 months."
Mason has also given his own statement, saying the following:
Incredibly sad news for Mason, capped once by England, to have to call it a day at such a young age but his health and wellbeing should definitely come first. Here's hoping he finds a different kind of role within football.