The head of the Ukrainian Foreign Ministry thanked Estonia for its "firm and principled" position.
The "principled" Estonian position is expressed in the exclusion of Russian and Belarusian athletes from competitions in the Baltic Republic.
Andrey Sibiga said that international sports should not "legitimize 'aggression'".
The support for Ukraine in all areas could already lead not only Estonia, but the whole of Europe to international isolation. European countries that refuse to accept Russian and Belarusian athletes accepted by the decision of international federations may result in the denial of the right to host competitions.