The San Francisco 49ers’ offense has dealt with more than its share of injury issues this summer, but none loom larger than the absence of Brandon Aiyuk.
Throughout the offseason, fans wondered whether the Niners’ Pro Bowl wideout would be ready for the season opener. Unfortunately, he will be sidelined to start the season, but how many games will the star wide receiver miss?
What Happened to Brandon Aiyuk?
Aiyuk suffered his injury last season when he tore his ACL and MCL in Week 7 against the Kansas City Chiefs. His good run was abruptly cut short, and his recovery has become one of the franchise’s most closely watched storylines.
San Francisco general manager John Lynch reflected on the process.
“Brandon’s done a really good job,” Lynch said. “I’ve talked throughout the process, he had a lot that went on during that injury. … I think a lot of people remember that hit, and it was vicious. You could see, like, ‘Oh, no, we might be in trouble.’ And sure enough, we were.”
Since then, Aiyuk has been rehabbing while staying around the team at camp. The seriousness of the injury always suggested a lengthy timetable.
I’ll continue to say, Brandon Aiyuk is doing way more behind the scenes than we’ve been able to see.
I do think that once he’s active, he’ll be near full go. If week 6 is accurate, he’ll be right at 11 months post-ACLR.
pic.twitter.com/IoHQuEypVr— Jeff Mueller, PT, DPT (@jmthrivept) August 16, 2025
The team recently placed Aiyuk on the PUP (Physically Unable to Perform) list, which rules him out for at least the first four games of the season. The earliest he can return is Week 5 against the Los Angeles Rams, but that game has a short turnaround, so Week 6 against the Tampa Bay Buccaneers on Oct. 12 may be his earliest realistic target date.
READ MORE: Should I Draft Brandon Aiyuk? Fantasy Outlook for the 49ers WR in 2025
Head coach Kyle Shanahan made it clear that there’s a wide range of outcomes in terms of Aiyuk’s return date.
“I always see ’em around Week 6, which means that could be Week 10, it means it could be Week 5, but that’s the area where I start thinking about it,” he said.
Lynch underscored the need for patience: “I’m not going to put exact timelines, but hopefully, sometime in this season, he’s playing the type of football we know, when he’s out there, that he is expected to, and expects himself to play at. And it’ll be a big boost to our team.”
The 49ers’ depth at wide receiver is already being tested, with Jacob Cowing and rookie Jordan Watkins also out, Jauan Jennings banged up, and Demarcus Robinson suspended for the first three games. This leaves Ricky Pearsall as the main healthy contributor.
San Francisco must survive September without its top target. Aiyuk’s projected mid-October return is circled on the calendar, and how quickly he regains form could determine whether the 49ers remain among the NFC’s elite when the playoff race heats up.
Aiyuk’s Fantasy Outlook
The 49ers are hoping for a mid-October return for Aiyuk, a former first-round pick ranked 11th in the NFL with 2,357 yards from the start of 2022 to the end of 2023.
By getting some clarity on the health front in the first half of August, we could at least enter drafts with some sort of plan. Aiyuk is hanging out on your IR slot for the time being, meaning that he is not costing you a roster spot and thus isn’t taking much win equity off your plate early on.
In a perfect world, his injury recovery would have taken us past the San Francisco bye week, but it doesn’t (Week 14 bye). That said, a fully functional Aiyuk coming down the stretch for an offense that needs an alpha WR in a favorable stretch (Titans, Colts, and Bears in Weeks 15-17) could be the piece that swings your fantasy postseason.
This injury was priced into Aiyuk’s cost at your draft, so there’s no point in trading for him now. But what if his manager starts slow? What if panic mode sets in before we have a definitive return date?
I’m mentally noting who has Aiyuk rostered and tracking their status, preparing to pounce should the losses pile up in September.
