Gerhart is a "Making the Leap" entry and a candidate to lead the conference in carries, but questions loom about the runner's ability to serve as Jacksonville's season-long bell cow after just 86 attempts over the past two years.
Here's the rest of Tuesday's injury roundup:
"They told me that my ACL and MCL are fine, but that I have a fracture in my knee," Trevathan told ESPN's Josina Anderson. "The doctor told me I was going to be out four to eight weeks, but I told him four to six. I'm not tripping. I will bounce back. I'm a soldier."
- Honey Badger update: Cardinals coach Bruce Arians said that safety Tyrann Mathieu and nose tackle Alameda Ta'amu are "pretty close" to returning to the field and could suit up as early as next week, per ESPN.com's Josh Weinfuss. Currently stashed away on the team's preseason PUP list, Mathieu said on Aug. 7 that he hoped to pactice in "the next two to three weeks."
- Chiefs safety Eric Berry left practice with tendinitis in his injured heel. "He works a few days and then it bothers him and it inflames a little bit. Then we back off," coach Andy Reid told reporters, per ESPN.com's Adam Teicher. Berry didn't suit up for last week's tilt against the Bengals, leaving his current on-and-off status to remind The Kansas City Star's Randy Covitz of "Brandon Flowers' lingering heel injury in 2012."
- Dallas Cowboys defensive end Anthony Spencer recently said that he could start the season on the PUP list, but Cowboys owner Jerry Jones said Tuesday that such a fate might be avoided. "He's getting there at a faster pace than we thought," Jones said, per the Fort Worth Star-Telegram. "... It's looking like we'll keep him on the roster."
- Arian Foster and Andre Johnson remain ghosts at Texans practice, but Houston was happy to welcome third-round nose tackle Louis Nix to his first camp practice after offseason arthroscopic knee surgery. "It's a matter of getting him back in football shape, getting him back in pads and not throwing him right back in there for 50 reps in a practice," coach Bill O'Brien said, per the Houston Chronicle. "We'll just continue to work him back."