Courtois, 26, conceded six goals at Russia but regularly made crucial saves to keep his team in matches.
Going into the semi-finals the award appeared to be a straight shoot-out between the four remaining goalkeepers; Courtois, Danijel Subasic, Hugo Lloris and Jordan Pickford.
UEFA Nations League - Finals
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Whilst Subasic and Lloris both won their semi-final matches both players made errors in the final.
Courtois helped Belgium to third place, their best ever finish, and he had an error-three tournament.
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