Griszcuk started playing basketball in the fourth grade of primary school, at age 17, for RTI Minsk.

[1] In the 1991–92 season, he made his debut in Poland playing for Pogoń Szczecin's basketball team in the Polish second division.

[2] He went on to play eleven years for KK Włocławek and was named to four All-PLK Teams and a PLK All-Star five times as well.

[3] He won three Belarusian Premier League titles (from 2015 to 2017) and was the Coach of the Year in once (in 2017).

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