Arizona Cardinals FS Tyrann Mathieu (knee) worked on the leg extension machine Monday, April 18, almost four months since tearing the anterior cruciate ligament in his knee.

Buffalo Bills FS Aaron Williams (neck) said his C4 and C5 vertebrae were ‘shaved down’ during his surgery in order to allow his nerves more room in his neck.

Buffalo Bills QB Tyrod Taylor said he’s working on cleaning up his footwork in the pocket this offseason.

New York Jets DE Muhammad Wilkerson didn’t show up for the start of the team’s offseason program Monday, April 18, according to a source. He has yet to sign his $15.7 million franchise tag tender. Wilkerson will likely skip the entire offseason program for the second straight season, and he’ll play under the tender in 2016 if a long-term deal isn’t reached by July 15.

New York Jets DE Muhammad Wilkerson didn’t show up for the start of the team’s offseason program Monday, April 18, according to a source. He has yet to sign his $15.7 million franchise tag tender. Wilkerson will likely skip the entire offseason program for the second straight season, and he’ll play under the tender in 2016 if a long-term deal isn’t reached by July 15.

Arizona Cardinals restricted free-agent WR Jaron Brown and Ss Tony Jefferson and D.J. Swearinger all signed their one-year qualifying tender offers for the 2016 season Monday, April 18. Financial terms were not disclosed.

Arizona Cardinals restricted free-agent WR Jaron Brown and Ss Tony Jefferson and D.J. Swearinger all signed their one-year qualifying tender offers for the 2016 season Monday, April 18. Financial terms were not disclosed.

UCLA LB Myles Jack (knee) is viewed as a ‘time bomb’ by one source that said his knee cartilage is starting to break away from the bone. The source said Jack’s knee could allow him several good years, or it may not.

Dallas Cowboys CB Orlando Scandrick (knee) is unlikely to do much during organized team activities and minicamps, but he should be ready for training camp.

Denver Broncos restricted free-agent LB Brandon M. Marshall is participating in offseason workouts with the team Monday, April 18. He hasn’t signed his tender and likely had to sign a waiver to participate.

Footballguys View: A bit of a surprise given Marshall’s refusal to sign the second-round tender the team placed on him this offseason. We have a feeling the Broncos will be able to work out a new long-term deal with the talented linebacker. After losing Danny Trevathan (Bears) in free agency, the Broncos need to wrap up Marshall.