I looked through the full wiki page on Sam Darnold and there's no information about a soft tissue injury or any injury timeline for him. The page shows him as healthy heading into 2026 — he's the defending Super Bowl champion QB for Seattle coming off a strong 2025 season (from the Sam Darnold page).
One expert take from The Fantasy Headliners briefly mentions that Darnold was injured in the Week 1 opener, but doesn't specify it as a soft tissue injury or give any recovery timeline — .
If you've seen a report about a Darnold soft tissue injury elsewhere, I'd recommend double-checking the source — the wiki doesn't have anything on it as of now. Are you asking about a specific recent update you came across?