CJ Ujah failed test and loss of Olympic medal 'devastating' for Team GB, says Richard Kilty

British sprinter Richard Kilty says he will miss out on the happiness of being able to send his son to school with an Olympic medal after learning his 4x100m silver would be stripped from him.

Kilty found out on Friday that he will lose his medal because of a failed doping test by team-mate CJ Ujah.

Ujah, 27, tested positive for ostarine and S-23 but says he «unknowingly consumed a contaminated substance».

«I feel sad all round,» said Kilty. «It's just a devastating situation.»

The 32-year-old told BBC Radio Tees Sport: «It's absolutely heart-breaking to finally hear the news that the medal is going to be stripped and wiped from history.

»The happiness for me was to win an Olympic medal and give it to my son for him to take it into school and say 'my dad won an Olympic medal'. I never got to do that. The motivation is for the next two and a half years to make sure that job gets done properly next time."

Kilty says he is now intent on overcoming adversity by pursing new goals and a possible gold medal in the relay at Paris 2024.

In Tokyo, he was joined by Ujah, Zharnel Hughes and Nethaneel Mitchell-Blake as the British team finished one-hundredth of a second behind Italy to claim Olympic silver.

Ujah was tested immediately after the event in August and on Friday the Court of Arbitration of Sport (Cas) concluded Team GB's quartet should lose their medal.

The news was announced along with an apology from Ujah, who blamed a contaminated supplement for the failed test and added the situation was one he «will regret for the rest of my life».

Kilty said Ujah has explained the supplement he used was not batch tested and therefore was not certified for safe use by Informed Sport, a standard British Athletics insists athletes adhere to.

«We