Chark (quadriceps) was a limited practice participant Wednesday, Michael DiRocco of ESPN.com reports.
Chark played a rather typical 74 percent of the Jaguars' offensive snaps in Sunday's win over the Jets, but he apparently came out of the contest with a quad issue in tow. The fact the 23-year-old is practicing to start the week puts him on track to play against the Texans in Week 9, though it's still worth keeping an eye on his participation level Thursday and Friday.