In July 2016 he was promoted to the Vorskla main squad to compete in the Ukrainian Premier League Reserves.

And in September 2019 Riznyk was promoted to the main-squad team of FC Vorskla in the Ukrainian Premier League.

He made his debut as a start-squad player for Vorskla Poltava in the Ukrainian Premier League in a losing match against FC Zorya Luhansk on 26 October 2019.

He was a part of the Ukraine U20 that won the 2019 FIFA U-20 World Cup, even if he not played any game and spent a time on the bench.

This biographical article related to association football in Ukraine, about a goalkeeper born in the 1990s, is a stub.