High School football tour: Alisal on an even playing field this fall – Monterey Herald
NFL can't ignore reignited grass. vs. turf field debate gaining steam
49ers troubled turf gets first test Sunday against Cowboys at Levi's Stadium – The Mercury News
Kyle Shanahan recaps first day of 49ers practice in Colorado - Sactown Sports
Prep football: Bella Vista wins in Johnson's new stadium
Nick Bosa: Turf vs. grass could influence free agency
Sac State junior kicker awarded sscholarship by HC Andy Thompson
49ers practice like losers before their first preseason game
Game over for artificial-turf curmudgeons at Beach Chalet
Why 49ers Players, Coaches Prefer Grass Fields Over Turf - Sactown Sports
How the risk of a lower-body injury is influenced by turf versus grass - The Athletic
49ers' George Kittle calls for surface continuity among NFL stadiums, done dealing with 'crappy turf'
Why 49ers Players, Coaches Prefer Grass Fields Over Turf - Sactown Sports