The San Francisco 49ers are set to face the Tennessee Titans in their 2026 preseason opener at Levi’s Stadium, but a significantly depleted roster will take the field. A substantial number of players, exceeding 20, are dealing with various injuries, including key figures like Christian McCaffrey, George Kittle, and Nick Bosa. Quarterback Brock Purdy and other healthy starters are not expected to see significant action, having participated extensively in joint practices with the Titans.

Coaches Kyle Shanahan and Robert Saleh, the latter returning to the stadium where he previously served as defensive coordinator, will be prominent figures on the sidelines. Despite the absence of many core players, the game is expected to feature intense play and provide insights into the team's potential as they prepare for the regular season.

Playing Time for Reserves

The preseason opener will provide a platform for rookies and reserve players to showcase their abilities. Many of the 49ers’ veterans, including starters like Fred Warner and Dre Greenlaw, are not anticipated to play extensively. San Francisco's veterans reportedly brought a game-day intensity to their joint practice sessions, engaging in physical play that led to several altercations and player ejections.

Rookie Performances

Fifteen rookies in training camp will have an opportunity to prove themselves against live competition. Players like second-round pick De’Zhaun Stribling have impressed with their size and catching ability. Romello Height, a third-round selection, has demonstrated expected speed off the edge, and Jaden Duggar has been effective in a new hybrid edge/linebacker role.

Position Battles

The game will also offer clarity on critical position battles, particularly at left guard. While veteran Robert Jones has been taking reps, the position remains open. Carver Willis, who returned to practice after a concussion, will face a challenge from Titans defensive tackle Jeffrey Simmons. In the punting position, Corliss Waitman is expected to take over duties following the departure of veteran Thomas Morestead.

Defensive Scheme Evolution

New defensive coordinator Raheem Morris has introduced a revamped defensive scheme, featuring disguised looks and aggressive pass-rushing formations. This new approach has received positive feedback from players during practice. Coach Shanahan noted the importance of scheme flexibility in a league where talent levels can be closely matched, praising Morris's experience in developing varied defensive strategies.

Coach Shanahan's Health

Head Coach Kyle Shanahan has gradually increased his on-field presence after sustaining a significant concussion in a recent car accident. He has transitioned from wearing a cast to a brace on his left hand and has been actively involved in practices. While fatigue and headaches persist, Shanahan is reportedly improving and aims to be fully prepared for the upcoming regular season opener, which involves extensive travel.

San Francisco 49ers defensive coordinator Robert Saleh, left, and head coach Kyle Shanahan watch the team warm up before a game against the Arizona Cardinals at State Farm Stadium on Sunday, November 16, 2025, in Glendale, Arizona.