Jennings (calf) isn't practicing Monday, Jennifer Lee Chan of NBC Sports Bay Area reports.
Jennings was bothered by a calf injury during the offseason program and then aggravated it in the first week of training camp. He's been absent from practices for more than a week now, freeing up more first-team reps for Ricky Pearsall, Demarcus Robinson and Jordan Watkins. Fellow 49ers wideouts Brandon Aiyuk (ACL) and Jacob Cowing (hamstring) also haven't been practicing.