San Francisco's preseason finale tests corner depth and backfield balance as Lenoir, Green, Lucas, Robinson and Flowers compete for five spots. A late-trade for Brian Robinson adds immediate pass-catching upside to a thin SF rushing corps, while Mason’s replacement is under review. Skyy Moore’s return-game track and Guerendo’s health keep roster math unsettled, underscoring SF’s mix of short-term fixes and longer-term flexibility.