SARATOGA SPRINGS, N.Y.—New York Knicks forward Jared Jeffries fractured his left fibula at practice Thursday and is expected to miss six-to-eight weeks.

The 6-foot-11 seventh-year pro pulled up in the backcourt during a scrimmage and was immediately waved off the court by coach Mike D’Antoni.

Jeffries’ lower leg was wrapped in an ice pack as he sat out the rest of practice until some light shooting at the end.

Jeffries said he jumped and when he landed felt his muscle tighten up, describing it as “more than a cramp.”