On Sunday night at Levi’s Stadium, Brock Purdy turned a game-opening disaster into a performance that kept the San Francisco 49ers on the cusp of a Super Bowl run. Facing the Chicago Bears on Dec. 29, 2025, Purdy rallied the 49ers to a 42-38 victory, throwing five touchdowns for the second consecutive game while the defense conceded 440 yards. The night began with a pick-six on the first play and a hamstring strain to left tackle Trent Williams, yet ended with a 38-yard strike to Jauan Jennings that sealed a comeback. The win leaves San Francisco one game from the NFC’s top seed and a division title when Seattle visits Levi’s on Saturday.
Key Takeaways
- Purdy threw five touchdowns in the 42-38 win over Chicago on Dec. 29, 2025, his second straight five-TD outing.
- The Bears gained 440 yards and still lost; the 49ers totalled 496 yards of offense in the shootout.
- Chicago became the first NFL team to lose after avoiding giveaways, scoring over 35 points, registering a defensive TD, and allowing zero sacks.
- Purdy has 10 total touchdowns across his last two games and 23 total TDs this season — a record for any QB with eight or fewer starts.
- Trent Williams strained a hamstring on the play that produced the early pick-six; Austen Pleasants started with limited career snaps but had practiced with Purdy.
- With Fred Warner sidelined earlier in the season, the 49ers remain on track to secure the NFC No. 1 seed and a first-round bye with a win over Seattle.
Background
The 2025 49ers season has been defined by adversity and depth. Injuries to key defenders, notably linebacker Fred Warner, pushed San Francisco into a sustained test of roster resilience; despite that, the team has repeatedly leaned on offensive continuity and play-calling from Kyle Shanahan. Purdy, the final pick of the 2022 draft, evolved from a backup into an on-field leader who fits Shanahan’s system, blending accuracy, pocket awareness, and mobility. This season’s string of starts for Purdy — and his recent aerial outbursts — have given the 49ers a path back to elite status in the NFC despite earlier prognostications that the team’s title hopes were over.
Historically, San Francisco’s offense has flourished when quarterback and coach operate in tight synchrony: examples include the Shanahan-era shootout wins of 2019. The present iteration replicates that dynamic, with Purdy executing a scheme that asks quarterbacks to read varied defensive looks and make quick, precise decisions. The result is a club that can absorb personnel losses by rotating veterans and reserves who have practiced in first-team roles. Saturday’s matchup with Seattle will mirror 2019’s decisive final-week stakes: the winner claims the NFC’s No. 1 seed and a bye.
Main Event
The sequence began disastrously for San Francisco when Bears cornerback Jaylon Johnson jumped Jauan Jennings’ route on the opening snap, deflecting a pass that became a T.J. Edwards pick-six. The play not only put Chicago ahead instantly, it also forced left tackle Trent Williams to chase and then leave the game with a hamstring strain. Rather than crumble, the 49ers’ offense responded methodically; Purdy used short reads, zone concepts and designed movement to stretch the Bears’ defense and trust his matchups.
Purdy’s stat line and decisive plays define the night. He accounted for five passing touchdowns and added two rushing scores, finishing with multiple explosive plays — including the eventual 38-yard touchdown to Jauan Jennings that swung momentum late. Despite the defense allowing 440 yards, the offense sustained long drives and converted critical third- and fourth-down opportunities (8-of-11 conversions on those situations), a success rate that proved decisive in a game with little margin for error.
Kyle Shanahan’s sideline management mattered early. After the opening pick-six Shanahan told Purdy — via the helmet radio — that the initial read had been correct and urged him to reset. That quick, composed exchange removed the emotional weight of the turnover and let San Francisco return to its scripted process. Backup QB Mac Jones, who listened in on the calls, described Purdy afterward as “dialed in,” emphasizing how the quarterback maintained focus across a chaotic contest.
Analysis & Implications
Purdy’s performance on Dec. 29 exposed several durable strengths: he processes defensive structure quickly, maintains pocket discipline, and creates with his legs when protection breaks. Those traits allowed an offense missing stalwarts like George Kittle and a partially available left tackle to still function at an elite level. The 49ers’ ability to adapt — inserting Austen Pleasants at left tackle after Williams’ exit, while preserving protection schemes practiced in training — underscores the roster’s preparation and coaching continuity.
From a roster-construction perspective, Purdy elevates the concept of system-fit over pure prototype. His blend of accuracy and mobility mirrors elements of Hall of Famers and elite contemporaries, enabling Shanahan to dial up concepts that punish defensive over-aggression. That matters especially in the postseason where Colorado-like variance is lower and execution counts most; San Francisco’s third-down efficiency in the Bears game suggests its offense can sustain drives against high-caliber opponents.
League-wide, this game will alter evaluators’ views of the 49ers’ ceiling. A victory in a shootout where the defense yielded 440 yards but the team still prevailed highlights an offense capable of winning high-variance contests — a critical skill in playoff football. The immediate implication is practical: if San Francisco defeats Seattle and claims the NFC’s No. 1 seed, the club secures a bye and home-field advantage throughout much of the playoffs, which materially increases Super Bowl odds.
Comparison & Data
| Game | Score | Context |
|---|---|---|
| 49ers vs. Bears (Dec. 29, 2025) | 42–38 | Purdy five TDs; team 496 total yards; Bears 440 yards |
| 49ers vs. Saints (2019) | 48–46 | High-scoring shootout under Shanahan’s offense |
| 49ers at Seahawks (2019, Week 17) | 26–21 | Season-deciding, goal-line defensive stand |
Those historical comparisons show a throughline in Shanahan-era San Francisco: when offenses are permitted to play free, the team wins by outscoring opponents in volatile contests. The modern 49ers combine that explosive potential with a depth-driven roster that can substitute without system collapse — a necessary trait during a season of significant injuries. Statistically, Purdy’s 23 touchdowns mark a milestone for quarterbacks with eight or fewer starts, reinforcing how quickly he has impacted the offense.
Reactions & Quotes
“Dialed. In.”
Mac Jones, backup QB (speaking in locker room)
Mac Jones, who monitored play calls and watched Purdy execute them live, used that two-word appraisal to capture the quarterback’s focus after an opening play that could have rattled a less steady player.
“Brock was an assassin out there throughout the whole day.”
Kyle Shanahan, head coach
Shanahan praised Purdy’s competitive edge and decision-making, a short verdict that underlines how the coach views the QB’s blend of precision and temperament during pressure moments.
“I was praying that whole last drive.”
Brock Purdy, QB
Purdy described the emotional intensity of the closing series and singled out the defense’s effort late, acknowledging the game’s collective nature despite his statistical heroics.
Unconfirmed
- Fred Warner’s exact return timeline is unresolved; the team hopes for a January return but official medical clearance has not been announced.
- Trent Williams was reported to have a hamstring strain after the opening play; the full severity and timetable for his return remain pending formal team updates.
Bottom Line
Brock Purdy’s performance against Chicago was both a personal statement and a practical lifeline for the 49ers’ championship trajectory. By converting third-and-fourth down opportunities, rebounding from an early pick-six and delivering multiple scoring plays, Purdy enabled San Francisco to win a game that featured very little defensive margin. The result preserves a clear path to the NFC’s top seed with a home game against Seattle looming.
For the 49ers, the outcome reframes a season that once seemed imperiled by injuries into one that still carries a legitimate Super Bowl blueprint. The next week — and the team’s medical reports on key veterans — will determine whether this momentum is sustainable, but the evidence from Levi’s Stadium is that an offense led by Purdy and coordinated by Shanahan can override adverse circumstances when it executes at a high level.
Sources
- San Francisco Standard — local news outlet and game recap
- NFL.com — official league boxscore and game statistics