A cantor is an official who sings liturgical music and leads prayer in a synagogue.
Cantor Meir Finkelstein performed the song at Friday night's Shabbat service.
You can see his incredible rendition in the link above.
Some of the lyrics include, "To hope for an outcome so rare, only three teams have come back from despair. To win when the odds were against them, let's show we can be number four!"
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