On 25 March 2019 the International Judo Federation disqualified him from any competition for two months after he participated in another ranked combat sport, which is prohibited for ranked judokas.[5]
Tushishvili participated in the 2024 Summer Olympics in Paris, but was disqualified for unsportsmanlike behavior during the quarter-finals against France's Teddy Riner, making him ineligible to compete in any events for the Georgian national team for the remainder of the Olympics.[6][7][8] The incident came about when Tushishvili unsuccessfully attempted to throw Riner, resulting in Tushishvili being brought down on his back on the mat; Tushishvili reacted by pushing his foot into Riner's groin, bringing the unresisting Riner to the mat; Tushishvili then angrily gestured with his hand in front of Riner's face, and when Riner went to stand up, Tushishvili pushed his knee against Riner's chest, sending Riner back to the mat.[9]