It’s not that the Packers want quarterback Aaron Rodgers to carry the ball 15 times at Washington this weekend. It’s just that the veteran signal-caller was much more agile than expected against the Vikings. When his pocket collapsed on a third-and-seven play, Rodgers took off and gained the first down. A sprained knee needs time and rest to get better — and that’s just not going to happen. The Packers will leave out most rollout passes and depend on plays limiting Rodgers’ exposure to hard hits for the next several weeks, possibly the rest of the season. The Packers are back on the practice field today (Wednesday) as they get ready for Sunday’s road game against the Redskins. Green Bay is coming off a 29-29 tie with the Vikings this past Sunday.