UPSET ALERT in Chatsworth. Santa Margarita walked into Sierra Canyon and shut the place down, stunning the No. 10/SN No. 11 Trailblazers with a 21–9 postseason statement. It was a defensive slugfest early, but once the Eagles broke through, the momentum never left their sideline. One of the biggest shocks of the CIF-SS D1 bracket — and a win that sends Santa Margarita surging into the next round. Full story in the comments. #HSFB #CaliforniaFootball