Kalnietis made his pro debut in February 2006 with the Žalgiris of Kaunas.
When he joined Žalgiris, he was extremely skinny point guard and due to his second name Maskoliūnas, which is a little bit similar to English word "Muscules", he got nickname of "Švarcas" (Arnold Schwarzenegger).
He then moved to Trapani in Italy, BC Žalgiris in Lithuania, KK Krka Telekom in Slovenia, Fenerbahçe S.K. in Turkey, Hapoel Migdal Jerusalem in Israel, again Žalgiris, and again Zrinjevac, Croatia osiguranje, Cibona.
On 15 May 2013, Grigonis was brought into the main Žalgiris roster for a game against BC Nizhny Novgorod in the VTB United League.
Nerijus Astrauskas (born 1980), football striker who plays for FK Žalgiris Vilnius in the Lithuanian A Lyga
On 15 May 2013, Dimša was brought into the main Žalgiris roster for a game against BC Nizhny Novgorod in the VTB United League.
FBK Kaunas, Lithuanian football club from Kaunas, formerly known as Žalgiris Kaunas