Jacksonville Jaguars running back Leonard Fournette is inactive Sunday against the New England Patriots because of a strained right hamstring.

Fournette, who did not practice all week, has shown improvement since injuring the hamstring last Sunday, but the team knows it would be a risk to play him, sources told ESPN's Adam Schefter.

Fournette was hurt -- he said he felt the hamstring pop when he planted his right leg -- when he caught a screen pass for no gain on third-and-long late in the first half of Jacksonville's Week 1 victory over the New York Giants.

He had nine carries for 41 yards and three catches for 14 yards against the Giants before the injury.

Jaguars coach Doug Marrone said Friday that if Fournette plays, his snaps will not be limited. Marrone also said he would be comfortable having only two healthy running backs available if Fournette doesn't play.

The Jaguars on Saturday promoted running back Brandon Wilds from the practice squad. Fellow back T.J. Yeldon was added to the injury report on Friday with an ankle issue, but the team said he will play against the Patriots.

Defensive end Calais Campbell had been listed as questionable because of knee soreness, but will also play.

ESPN's Michael DiRocco contributed to this report.