LeBron James is the youngest in a game with 25+ points and 10+ rebounds. He was 18 years and 334 days old against the Grizzlies on November 29, 2003.

who is the youngest player with 25 points and 10 rebounds in a game
Interpreted as:
Who is the youngest player with 25 or more points and 10 or more rebounds in a regular-season game?

See Trending NBA Searches