The Packers re-signed Welch on Thursday.
The Ravens re-signed Welch on Friday, Field Yates of ESPN reports.
Welch (concussion) is active for Sunday's game against the Steelers.
Welch (concussion) is questionable for Sunday's matchup against the Ravens.
Welch will not return Sunday against the Broncos due to a concussion, Jamison Hensley of ESPN.com reports.
Welch signed a one-year contract with the Ravens on Monday, Ryan Mink of the Ravens' official site reports.
Welch was activated off the reserve/COVID-19 list Wednesday, Clifton Brown of the Ravens' official site reports.
The Ravens placed Welch on their reserve/COVID-19 list Wednesday.
Welch (neck) wasn't listed on Thursday's injury report.
Welch (neck) avoided serious injury as coach John Harbaugh said he suffered a "stinger" during Saturday's preseason game against the Saints.