Stenionis developed at Zalgiris Kaunas before moving up to Lithuania’s top division with Nevezis and Lietkabelis, where he made his EuroCup debut.
Last season, he played for Valmiera Glass VIA, averaging 13.7 points, 2.8 rebounds and 7.9 assists per game. With the Latvian side, he won the Latvian-Estonian Basketball League and the Latvian Basketball Cup, earning MVP honours in the cup final.