Nick Bosa’s Absence Leaves 49ers Defense Vulnerable
The San Francisco 49ers are feeling the sting of Nick Bosa’s absence more than ever. Initially, the team managed to hold its ground despite losing their star defensive end, but as the season progresses, the cracks in their defensive line are becoming increasingly evident.
Diminished Pass Defense Performance
The impact of Bosa’s departure is glaring, particularly in the pass defense statistics. While the rushing game hasn’t suffered dramatically, the numbers tell a disheartening story when it comes to defending the pass. With Bosa on the field during the first three weeks, the 49ers had a rushing expected points added (EPA) per play of -0.106. Without him, that number has plummeted to -0.170, with the success rate rising slightly from 41.6% to 43.5%.
However, it’s the pass defense that has taken a nosedive. The 49ers, who once ranked 10th in EPA per play at -0.014 and 14th in success rate at 45%, have now sunk to 29th overall with an EPA of 0.284 and a success rate of 53.2%. This stark decline underscores the team’s transformation from a formidable defense to potentially the worst in the NFL.
Challenges Against Elite Quarterbacks
The 49ers have faced formidable quarterbacks in recent games, including Matthew Stafford and Baker Mayfield. Yet, this is a unit that previously managed to contain Sam Darnold, who has emerged as one of the league’s more efficient passers. The loss of Bosa, combined with injuries to other key players like Fred Warner, has exacerbated the team’s struggles.
Warner’s absence has further compounded the issue, as the defense has struggled to produce pressure. With Bosa on the field, the 49ers maintained a pressure rate of 33.6%, but that figure has dipped to just 23.1% without him.
Increased Reliance on Backup Players
The absence of Bosa has forced the 49ers to rely more heavily on players like Yetur Gross-Matos and Bryce Huff. Unfortunately, Gross-Matos has been battling injuries and has seen his workload increase, which led to a hamstring issue. Meanwhile, Huff transitioned from a rotational role to nearly full-time, but has also faced health challenges.
As the trade deadline approaches, the 49ers may find themselves compelled to make a move for a pass rusher. Relying on players like Trevis Gipson and Robert Beal may not provide the necessary support to revitalize the pass rush.
The Secondary’s Struggles
When the pass rush falters, the secondary faces an uphill battle. With a lack of pressure, quarterbacks like CJ Stroud can exploit vulnerabilities in the secondary, particularly against lesser-known receivers. The 49ers are in a precarious position, and without a pass rusher stepping up, their defensive woes are likely to continue.
In the weeks ahead, the 49ers will need to address these issues promptly. The absence of Bosa has undeniably altered the landscape of their defense, and finding a solution will be critical for the team’s aspirations this season.
