We all know the undefeated run by Hungary in the 1950's before the "Miracle of Bern". I googled "Hungary undefeated record 1954 1953". The result has always been the same. Hungary went undefeated from 1950 to 1954. Their last defeat was May, 1950. The RSSSF has the list of games they played in that period. https://www.rsssf.org/miscellaneous/unb-hungary-29.html However, I discovered this match on May 27th, 1952. It was not on the RSSSF page. https://www.transfermarkt.com/soviet-union_hungary/index/spielbericht/2382528 USSR 2-1 Hungary The game featured all of Hungary's regulars. I do not know the Soviet Union's lineup in the 1950's. Netto and Ilyin played that day. https://www.transfermarkt.com/soviet-union_hungary/index/spielbericht/2382528 According to a poster on 11v11, the Soviet Union team was actually Moscow XI. https://eu-football.info/_match.php?id=88889 A defeat is a defeat..
I googled the match in Russian. They had a match report for another match a few days before. It was a Moscow XI. Another Russian website had record of all Soviet matches in that period. It was listed not as the Soviet nation team. Match Report: Moscow XI vs Hungary 1-1 May 24, 1952 https://www-rusteam-permian-ru.tran...tr_sl=ru&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=sc The Soviet national team was playing under the name Moscow from March 1952. http://www.rusteam.permian.ru/history/1952.html Google translated