JACKSONVILLE, Fla. -- Jaguars cornerback Jalen Ramsey is questionable for Sunday's game against the Dallas Cowboys because of knee soreness, another bit of bad news for a team that has been plagued by injuries over the past week.

The team did get some good news: Running back Leonard Fournette (hamstring) and nickelback D.J. Hayden (toe) ran on the side during Friday's light workout, and coach Doug Marrone said, "There's a chance those guys'll be able to play" against the Houston Texans on Oct. 21.

Ramsey was added to the injury report Thursday and was limited in practice Friday. Marrone said that Ramsey did not suffer an injury but is bothered by soreness. Ramsey participated in all the drills during the portion of Friday's workout open to the media; he was not wearing a brace or wrap on his knee, and the team is optimistic he will be able to play against the Cowboys.

"We're just going to monitor the situation as it goes," Marrone said.

Cornerback Jalen Ramsey is dealing with knee soreness, leaving him questionable for the Jaguars' game against the Cowboys on Sunday. Sam Greenwood/Getty Images

The Jaguars are also reworking their offensive line, signing former New York Giants first-round pick Ereck Flowers on Friday. Flowers replaces left tackle Josh Wells, who suffered a groin injury this week and was placed on injured reserve.

Flowers won't play this week but could compete to start next week. The Jaguars could shuffle their lineup and move center Brandon Linder or right guard A.J. Cann to left tackle and use Flowers as a depth swing tackle.

Jacksonville is expected to start third-teamer Josh Walker at left tackle on Sunday.

Marrone said that Fournette, Hayden and cornerback Tre Herndon (hamstring) -- all of whom will miss Sunday's game -- running on the side was a great sign. Fournette hasn't played since the first half of Week 4 against the New York Jets and will have sat out four of the team's first six games after this weekend.

Hayden hasn't played since Week 2. Herndon, who plays mainly special teams, did not play last week against the Kansas City Chiefs.

"I think next week we'll be good listing them as questionable," Marrone said. "There's a good chance those guys will be able to play."

Tight end Austin Seferian-Jenkins (core muscle) and running back Corey Grant (foot) were placed on injured reserve earlier in the week. Seferian-Jenkins is eligible to return after eight games.