3 things to watch in 49ers-Chargers: Will someone step up at left guard?

Key Points:

• The San Francisco 49ers enter tonight's preseason game after a joint practice with the Los Angeles Chargers, aiming to play some starters while avoiding injuries ahead of roster cutdown day.
• The left guard position remains unresolved, with Robert Jones, Connor Colby, and Carver Willis all competing but none standing out, raising concerns about whether the team will promote internally, trade, or sign a veteran.
• Safety is a key area of concern following shaky performances in joint practices, with players like Ji’Ayir Brown and Marques Sigle expected to see significant playing time to clarify the depth chart.
• The wide receiver competition is heating up, especially among Jordan Watkins, Jacob Cowing, and Will Pauling, as they vie for limited roster spots behind established players; Mike Evans is sidelined due to a minor injury.
• Christian Kirk’s absence remains notable despite coach Kyle Shanahan’s praise, and special teams contributions will likely influence which receivers secure a place on the roster.