Yiadom is seen as a strong third corner option by the 49ers, Eric Branch of the San Francisco Chronicle reports.
The 49ers signed Yiadom on Friday, Jeremy Fowler of ESPN.com reports.
Yiadom was ruled out for the remainder of Sunday's game against the Falcons with a concussion, Katherine Terrell of ESPN.com reports.
Yiadom was waived by the Texans on Tuesday, Brooks Kubena of the Houston Chronicle reports.
Yiadom (thigh) is inactive Sunday against the Chargers.
Yiadom (thigh) logged a full practice Friday.
Yiadom is out for Sunday's matchup against the Bears.
Yiadom (undisclosed) was activated from the reserve/COVID-19 list Saturday.
Yiadom (undisclosed) was placed on the reserve/COVID-19 list Wednesday.
Yiadom is likely to start in place of Kevin King (shoulder) in Sunday's matchup against the Bears, Jason Wilde of ESPN.com reports.