Team Liquid, 9 Pandas, Tundra Esports, Talon Esports, Entity Gaming and Shopify Rebellion have been placed in Group A.
Group B will feature Gaimin Gladiators, Team Spirit, Quest Esports, BetBoom Team, OG and Evil Geniuses.
ESL officials pointed out that due to the tight schedule before The International 12, there will be no Chinese teams at the event.
DreamLeague Season 21 will take place from September 18-24 online, and all participants will be located in Europe. 12 teams will compete for one million dollars of prize money.
Earlier, the organizers of the championship told about the updated format of DreamLeague Season 21.