Walker (coach's decision) is out for Sunday's game against the Raiders, Ryan Mink of the Ravens' official site reports.

Walker is inactive for Thursday's season opener against the Chiefs.

Walker (ribs) participated in practice Tuesday, Jonas Shaffer of TheBaltimoreBanner.com reports.

Coach John Harbaugh said Walker's lack of playing time in a preseason win over Atlanta on Saturday was related to a rib injury, Jeff Zrebiec of The Athletic reports.

Walker wasn't targeted in Saturday's preseason game against Atlanta.