Ginn (knee) may be a game-time call for Saturday's preseason outing in Minnesota, Kyle Odegard of the Cardinals' official site reports. Sitting out back-to-back practices Monday and Tuesday, Ginn continues to endure a knee injury. If his stay on the sidelines is extended, rookie John Brown could cement the No. 3 receiver role heading into the regular season. However, Ginn will still have two opportunities to display his understanding of Bruce Arians' offense, if he logs another DNP.