The legal battles between aggregators such as and antitrust authorities of the European Union (EU) commenced some time ago. Now it is the turn of the post-Soviet countries and the preliminary court hearing between and the Russian Federal Anti-Monopoly Service (FAS) was held on 24 March 2021 in the Commercial Court of Moscow, the subsequent hearing took place on 19 May 2021. The background to the Russian case appears very similar to the European cases.