Head coach Dan Campbell specified Jefferson as a player having a productive training camp, Colton Pouncy of The Athletic reports.
After a productive career at Oregon, Jefferson failed to find his footing as a seventh-round rookie last year in Detroit. By season's end, both converted safety Godwin Igwebuike and Kutztown product Craig Reynolds had earned more snaps and game appearances than him. However, it seems that Jefferson has worked his way back into the mix this offseason, which opens the door for him to compete with Igwebuike, Reynolds and Justin Jackson for the No. 3 running back job behind D'Andre Swift and Jamaal Williams.
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Lions coach Dan Campbell suggested Goff and other starters will play about one quarter in Friday's preseason game against Atlanta, Tim Twentyman of the team's official site reports.
Chark caught four passes for 77 yards and two touchdowns during Saturday's team scrimmage, Dave Birkett of the Detroit Free Press reports.
Swift got the day off Wednesday, seemingly as part of Detroit's plan to keep him healthy throughout the season, Dave Birkett of the Detroit Free Press reports.
Head coach Dan Campbell doesn't think the leg injury Cephus suffered in Tuesday's practice is serious, Adam Schefter of ESPN reports. "[Cephus] will be down for we feel like a short period of time, but I think he's going to be OK," Campbell said.
Williams has been getting some of the first-team reps in training camp, but he could face more competition for playing time following Detroit's recent signing of Justin Jackson, MLive.com's Kyle Meinke reports.
Jackson signed a contract with the Lions on Monday.
Head coach Dan Campbell expressed concern with Swift holding up under a large workload, Jeff Risdon of USA Today reports. "[Swift]'s got that ability, and so my gosh man, you want those guys out there every play, but ... I would like to see, if we get him out of camp, get his legs under him, get him in really good shape, like I said get the intensity, get the volume under him and then let's see where he looks like," Campbell said.
Chark has lined up across the formation during the installation of Detroit's new offense under first-year offensive coordinator Ben Johnson, Tim Twentyman of the Lions' official site reports.
The Lions placed Williams (knee) on the active/non-football injury list Sunday.
Running backs coach Duce Staley indicated that Jefferson could see more playing time if he can improve on special teams, Dave Birkett of the Detroit Free Press reports.