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49ers starting DT Collins tears patellar tendon in Australia, out for year

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Nick Wagoner

September 10, 2026

The Los Angeles Rams will face the San Francisco 49ers without star defensive tackle Aaron Donald, who is not traveling to Australia. Meanwhile, 49ers defensive tackle Alfred Collins is out for the 2026 season due to a torn patellar tendon sustained during practice.

Defensive Personnel Shifts Impact Rams-49ers Opener

The upcoming NFL matchup between the Los Angeles Rams and the San Francisco 49ers has been significantly altered by personnel setbacks. As confirmed by head coach Sean McVay, Rams standout defensive tackle Aaron Donald will not be making the trip to Australia for the Thursday night season opener. His absence leaves a massive void in the Rams' interior defensive line, forcing the coaching staff to adjust their defensive schemes against a formidable 49ers offense.

The Impact of Aaron Donald’s Absence

Aaron Donald remains one of the most disruptive forces in the NFL. His decision not to travel to Australia presents an immediate challenge for the Rams' defensive coordination. Without his ability to command double-teams and penetrate the pocket, the Rams must rely on depth players to step into high-leverage situations. This shift inevitably changes how the 49ers will approach their offensive play-calling, as they no longer have to account for Donald’s unique ability to collapse the line of scrimmage.

49ers Face Critical Loss in Alfred Collins

While the Rams deal with the absence of their star, the 49ers are grappling with a season-ending injury to their own roster. Starting defensive tackle Alfred Collins suffered a torn patellar tendon during a Tuesday practice session while in Australia. This type of injury is notoriously difficult to recover from, and the team has confirmed he will be sidelined for the entirety of the 2026 season.

Broader Implications for the 2026 Season

These developments highlight the physical volatility of professional football, especially when dealing with the logistical strain of international travel. The transition to an Australian venue for this opener has already proven to be a test of durability and roster management. For the 49ers, the loss of Collins creates a significant gap in their defensive front, which will require immediate attention from their front office and coaching staff to address through roster rotations.

Strategic Adjustments and Future Trends

As the league continues its push into international markets, player health remains a paramount concern. Both the Rams and 49ers are now forced to demonstrate the depth of their respective rosters under the global spotlight. For the Rams, the focus will be on mitigating the loss of their primary defensive anchor, while the 49ers must look toward internal replacements to fill the void left by Collins. The outcome of this game will likely hinge on which coaching staff can better manage these unexpected roster gaps during such a high-stakes, cross-continental encounter.

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