Zherenko, 22, was drafted by the Blues in the seventh round (No. 208 overall) of the 2019 NHL Draft.
This season, his first in North America, the 6-foot-4, 196-pound goaltender has played in 24 games for the Thunderbirds, posting a 10-8-3 record along with a 2.96 goals-against average and a .918 save percentage.
During the 2022 preseason, the Moscow, Russia, native made one appearance for the Blues, stopping all 11 third-period shots he faced to help the Blues to a 4-1 win over the Chicago Blackhawks.