Christian McCaffrey isn’t easing into Week 1 with any nostalgia about Aaron Donald. The 49ers running back made it clear Monday in Melbourne that San Francisco is treating the Rams’ returning defensive tackle like the game-wrecker he has always been.
“He’s a force, man,” McCaffrey told reporters in Melbourne on Monday, according to Heavy and video from the session posted by ESPN Australia.
McCaffrey put Donald in the same conversation as Myles Garrett and said the 49ers have to track both players when they face Los Angeles on Thursday at the Melbourne Cricket Ground. He said Donald has been that kind of presence throughout his career, and that San Francisco has to know where Donald is - and where No. 95 is.
That second number belongs to Garrett, not Donald. Donald is back in No. 99, as NBC Sports and multiple Rams reports have noted since he signed.
The warning comes with a little extra weight because of the setting. The 49ers worked out Monday at AAMI Park after a week of settling in, coffee runs, and adjusting to a Friday morning local kickoff. McCaffrey has already talked up Melbourne’s food and coffee since the team arrived, and he also pointed out to The Sydney Morning Herald that the MCG itself is a different kind of stage, with an oval layout built for cricket and clocks and audibles placed differently than in a typical NFL venue.
Donald’s return has forced everyone to take the Rams’ front seriously again. He ended a 2 1/2-year retirement on Aug. 30 and agreed to a one-year deal that, according to The Athletic and NFL.com, starts at $20 million and can climb to $30 million with incentives. His last season was 2023, and he stepped away in March 2024 with 111 sacks, 10 Pro Bowls, and eight first-team All-Pro selections on his résumé.
Los Angeles still has not said whether he will actually play Thursday. Sean McVay has called it day to day. NFL Network’s Ian Rapoport reported that Donald is expected to travel to Australia and remains TBD to play.
That includes Aaron Donald, who is still TBD on playing.
- Ian Rapoport (@RapSheet) September 4, 2026
Kyle Shanahan isn’t waiting for the final answer. The 49ers coach said he “definitely” expects Donald to be out there, according to ESPN.
Shanahan also said he had been planning for Donald’s return a month before it became official. He remembered the other side of the news too: when Donald retired the first time, Shanahan heard cheering in the hallway at the 49ers facility before he even saw the alert.
That’s because Donald has owned enough of this matchup to stay in the conversation even after retirement. AAP reporting in The Canberra Times noted that he has 12.5 sacks and three forced fumbles in 18 regular-season games against San Francisco.
If he lines up in the A-gaps the way he has for years, McCaffrey’s world gets a lot more complicated. Protection has to slide.
Linemen have to help. The back has to adjust a step earlier.
And Donald isn’t the only problem.
Garrett gives the Rams another elite pressure piece, and the numbers behind the two of them tell the story. Donald won Defensive Player of the Year in 2017, 2018, and 2020.
Garrett won it in 2023 and 2025. That is five of the last nine AP awards between them, according to the Associated Press list.
McVay said in June, according to the Associated Press and ESPN, that he talked with Donald about bringing Garrett to Los Angeles during the trade chase. Donald later said the move made him think about playing again. That is the documented chain of events; anything beyond that would be speculation.
The Rams also bring plenty on offense. Matthew Stafford is the reigning MVP, and Davante Adams and Puka Nacua give him two proven targets. The Los Angeles Times described the Week 1 group as loaded on both sides of the ball, which means San Francisco has to deal with more than just the pass rush.
Kickoff is set for 8:35 p.m. ET Thursday, Sept. 10, which is 10:35 a.m.
Friday, Sept. 11, in Melbourne. The game will stream on Netflix, according to NFL.com.
The Rams are the designated home team and plan to fly in late, while the 49ers have already been on the ground for a week.
McCaffrey’s point was straightforward: don’t let the return turn into a surprise. Account for Donald.
Account for Garrett. Treat the front like it is fully alive, even before Los Angeles officially says Donald is in.
Shanahan is already there, and one of the 49ers’ biggest voices just said it out loud.
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