 Complete the following phrase:  Dinamo Tbilisi was one of the most prominent clubs in Soviet football and a major contender in the Soviet Top League almost immediately after it was established in 1936. The club was then part of one of the leading sport societies in the Soviet Union, the All-Union Dynamo sports society which had several other divisions besides football and was sponsored by the Soviet Ministry of Internal Affairs. Its main claim to European fame was winning the Cup Winners Cup in 