The 49ers called up tight end Brayden Willis from the practice squad to the active roster on Wednesday. The 49ers now have four tight ends on their active roster. Why so many?. It's possible the 49ers are concerned about George Kittle on a short week. He's currently is playing through a broken rib which caused him to drop at least one pass this past Sunday against the Cardinals. He also got tossed onto his back trying to block when Jordan Mason fumbled and the Cardinals recovered.