NASHVILLE, Tenn.

Preseason football often lacks the thrill of regular season games, and the San Francisco 49ers’ recent 17-13 loss to the Tennessee Titans did little to defy that trend. However, despite the generally uninspiring game, there were notable moments and performances that stood out, providing valuable insights for the team and its fans.

Kyle Shanahan Takes a Backseat

In a significant departure from his usual role, 49ers head coach Kyle Shanahan allowed offensive assistant Klay Kubiak to call plays during the game. Shanahan, who has been at the helm for 16 years, found the experience unusually dull but refreshing in a way.

“It was one of the more boring things for me personally,” Shanahan admitted with a chuckle. “That was my first game in 16 years not calling plays. I didn’t know what to do with my hands. I got to throw a red flag. I was excited about that.” His excitement wasn’t for the flag itself but for the chance to challenge a call after rookie safety Malik Mustapha made an impressive stop on Titans running back Hassan Haskins.

Shanahan’s challenge was successful, underscoring the impact of Mustapha’s aggressive play, which had been a key point of interest leading up to the game. “It was awesome, it was huge,” Shanahan said. “We knew (Mustapha) was a hitter, so we were excited to see him hit someone else than our own guys in practice.”

Malik Mustapha and Other Defensive Highlights

Mustapha’s debut was a highlight for the 49ers, as he showcased his physicality and ability to make impactful plays. He wasn’t alone in making a strong impression. Second-year linebacker Dee Winters also stood out with a notable tackle on Titans quarterback Will Levis and a tackle for loss against the run. Third-year defensive tackle Kalia Davis contributed with a sack and two additional tackles for loss, demonstrating the depth and potential of the 49ers’ defense.

O-Line Observations

On the offensive front, the 49ers’ line saw some changes. Rookie Dominick Puni could potentially earn the starting right guard position based on his performance in the early weeks of training camp. In the game, three of the first-string offensive linemen saw action: Puni, left guard Aaron Banks, and right tackle Colton McKivitz. Nick Zakelj filled in for first-string center Jake Brendel, who is managing knee tendinitis this preseason. Veteran Chris Hubbard stepped in at left tackle for the star player Trent Williams, who did not dress for the game.

Williams’ absence has been somewhat overshadowed by the ongoing contractual discussions involving receiver Brandon Aiyuk. However, the situation with Williams remains crucial. The 49ers are optimistic about reaching a new contract agreement that will resolve his holdout and stabilize the offensive line.

Looking Ahead

While the game may have been less thrilling than hoped, the preseason opener provided valuable takeaways for the 49ers. The solid performances from rookies and second-year players, coupled with adjustments on the offensive line, give fans and the coaching staff reasons to remain optimistic. As the team continues to prepare for the regular season, these early insights will be crucial in shaping their strategy and roster decisions.