The Jacksonville Jaguars face off with the Kansas City Chiefs on Sunday afternoon but they will be missing running back Leonard Fournette.

Fournette is dealing with a hamstring injury that he keeps reinjuring and Doug Marrone has made it clear he isn't sure how long he will be out. It could be a week, could be three weeks or it could be IR, Marrone just can't put a timetable on it.

“I really don't know,” Marrone said via ESPN. “Believe me, if I knew exactly what the deal was and I could tell you — three [games], six, 10, IR, whatever — I would. I just don't know. Those injuries are tough. We talked about it by position. We talked about it by player. We've talked about it every other way. “I thought he was looking good. … You guys see him working [in practice] ,but it's different when you're playing a game. The game's different.

Fournette had an MRI after Sunday's game and it appears that the injury isn't any worse than when he first injured it in the first half of the season opener.

Marrone explained that Fournette feels his hamstring catch every time that he tries to accelerate to top speed and that is causing the problems.

“There's a thing that's just pulling at it,” Marrone said. “It's legit. There is something there, and we've just got to do everything we can to get that out. That whatever thing is that feels like it catches. That's all I know.

It seems to be a week to week injury so expect an update on this situation early next week.