The San Francisco 49ers kick off their preseason against the Denver Broncos, with seven players particularly under scrutiny. Linebacker Dee Winters has a strong chance to solidify his starting role after a solid camp, showcasing improvements essential for his development as a three-down player. Wide receiver Russell Gage, aiming to make the roster for the first time since 2022, must perform well, especially considering limited snaps could indicate a secure position. Rookie defensive lineman Alfred Collins is set to make his debut, with an opportunity to impress after a promising training camp.