white hope

WordReference Random House Unabridged Dictionary of American English © 2026

white′ hope′, 

1. a person who is expected to accomplish much in a given field:
   the white hope of the American theater.
2. Sport (formerly) a white man who had a good chance of winning the heavyweight boxing championship from a black man.
• 1905–10

Collins Concise English Dictionary © HarperCollins Publishers::

white hope noun

1. a person who is expected to bring honour or glory to his or her group, team, etc