Chiefs agreed to terms with DL Vance Walker, formerly of the Raiders.
Pete Dougherty on Twitter
Walker was scheduled to visit the Packers next but won't make the trip. The soon-to-be 27-year-old can push the pocket some and play the run. He's mainly been a 4-3 defensive tackle but could replace Tyson Jackson at left end in Kansas City's 3-4. Walker started 15 games in 2013, amassing 40 tackles and three sacks.
Chargers re-signed CB Richard Marshall to a one-year contract.
Ian Rapoport on Twitter
Marshall, 29, appeared in all 16 games for the Bolts last season, starting the final six and the two playoff games. He's a burn victim in coverage but isn't afraid to get his nose dirty in the run game at 5-foot-11, 198 pounds. GM Tom Telesco is trying to piece a cornerback depth chart together. Ideally, Marshall is a No. 3 or 4.
Bills GM Doug Whaley mentioned second-year LB Ty Powell as a candidate for the starting middle linebacker spot.
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Powell was a seventh-round pick by the Seahawks last April. He couldn't crack Seattle's loaded roster and appeared in five games for the Bills as a rookie, making nine tackles. Kiko Alonso is moving to weak-side linebacker in 2014. Powell is a big-time athlete and former defensive back. The Bills will have tryouts at the MIKE spot.