Sacramento, CA (SportsNetwork.com) - Boston Celtics forward Jared Sullinger will miss an indefinite amount of time with a foot injury, the team learned Thursday.

Sullinger will be sidelined "for the foreseeable future" after suffering a stress reaction to the fourth metatarsal of his left foot, according to the Celtics' official website.

No timetable has been discussed for his potential return to the lineup, though Celtics coach Brad Stevens said Sullinger would be unavailable for the team's three-game road trip.

He wore a boot on the foot and watched practice from the sideline as Boston got ready to play Sacramento on Friday in its first game since the All-Star break.

Sullinger, who suffered the injury Feb. 11 against Atlanta, is averaging 14.4 points, 8.1 rebounds and 2.4 assists in 51 games this season.