Kraft left practice early Saturday after sustaining a knee injury, Kassidy Hill of the Milwaukee Journal Sentinel reports.
Kraft's injury doesn't sound serious, according to head coach Matt LaFleur, but he added that he didn't have any information. The 22-year-old is competing with fellow rookie Luke Musgrave and fourth-year pro Josiah Deguara for starting duties at tight end. Kraft now will work to get healthy and perhaps return to practice in future days.