Toronto Maple Leafs general manager Kyle Dubas announced Wednesday that 20-year-old prospect Rodion Amirov has been diagnosed with a brain tumor.
Dubas said the Leafs are working with Salavat Yulaev Ufa, Amirov's team in the Kontinental Hockey League in Russia, to "monitor his treatment and care":
"Rodion commenced the 2021-22 season with Salavat Ufa of the KHL but suffered an injury to open the season. During the course of his recovery from this injury, he developed some new, unrelated symptoms that required ongoing extensive investigations over the last few months.
"Rodion is currently undergoing treatment at a medical facility in Germany and will not return to play for the remainder of the season.