The London fighter has decided to end his competitive career after suffering a seizure.

According to BBC Sport, the 20-year-old collapsed last month after battling tonsillitis.

He competed in the under-58 kilograms division and medalled at a number of major Championships.

This included gold at the 2014 Commonwealth Championships.

In addition, Cater competed at the World Taekwondo Championships in 2015 and 2017 and at the inaugural European Games in Baku in 2015.

He came through to Britain's senior squad after serving in the development ranks but will now not make the Tokyo 2020 Olympics.

"I had to put my health first," he told BBC Sport.

"The last three months have been mentally the worst of my life and stopping is heart-breaking as I've always dreamt of going to the Olympics."

GB Taekwondo's performance director Gary Hall praised Cater's contribution.

"Max has been a successful athlete and someone who always goes about his hard-daily work with a smile and an incredibly positive energy," he said.

"I want to thank Max personally and on behalf of the world class performance programme for his involvement in the team's progress and wish him all the very best with his future endeavours."