Justin Warren Marshall is a New Zealand former rugby union player. He played 81 test matches for the New Zealand All Blacks between 1995 and 2005.
Marshall played for the Crusaders in the Super Rugby from 1996 to 2005, winning the competition five times. He subsequently moved to Europe and had spells playing for Leeds Tykes, the Ospreys, Montpellier and Saracens.
He is now a Sky Sports commentator in New Zealand for most All Blacks games and other provincial matches.
WSJ's short review: https://www.wsj.com/arts-culture/book... Excerpt: "Tiny features, such as the scales on a butterfly wing, scatter light in different wavelengths depending on how they are layered—regular patterns will appear solid, like bluebird feathers, while irregular patterns will appear iridescent, like a hummingbird breast. The complexities are endless and endlessly fascinating: Parrots, for instance, may appear green to our eyes, but that’s only thanks to the influence of the structural blue that mixes with their intrinsic color, yellow."