The International Paralympic Committee (IPC) has banned powerlifter Anton Kriukov for another 18 months after he violated the terms of a previous doping suspension.
The Ukrainian was found to have competed while still suspended, therefore breaching the IPC Anti-Doping Code.
In 2018, Kriukov received a two-year ban following an adverse analytical finding in a test from the Mexico City 2017 World Para Powerlifting Championships.
He violated this by competing at the 2019 Ukrainian Para Powerlifting Cup, held from December 6 to 8 in Dnipro.
Kriukov's ineligibility was not set to end until January 21 2020.
The additional 18-month ban has been backdated, meaning it will run from January 22 2020 to July 21 2021.
Kriukov will be eligible to compete again shortly before the Tokyo 2020 Paralympics, which are scheduled to start on August 24 next year.
"The IPC reminds all athletes or other persons currently declared ineligible of the terms of the prohibition against participation during ineligibility set out at Article 10.12.1. of the IPC Anti-Doping Code," it said in a statement.
"As a signatory of the World Anti-Doping Code, the IPC remains committed to a doping-free sporting environment at all levels."
Kriukov made his Paralympic debut at London 2012, finishing seventh in the men's under-100 kilograms field.
Four years later, Kriukov improved to fifth in the men's under-97kg at Rio 2016.