GREEN BAY, Wis. — Preseason football is as much about giving backups a chance to shine as it is getting ready for when the real games start.

The Seahawks and Packers accomplished the first task in their exhibition meeting Friday night won by Seattle 17-10.

As for whether they’re ready for the regular season? That’s yet to be determined, especially when the NFC heavyweights played a chippy game bogged down by mistakes and 22 penalties — including 14 for the Seahawks.

“What we didn’t do so well was the penalties. We had so many third-and-longs, that’s tough to be a really good football team,” Seattle quarterback Russell Wilson said. “We can’t do things to push us backwards.”

Thankfully for Wilson, two backups came up big. Christine Michael ran for 97 yards on 11 carries and Stephen Williams snatched the ball away from cornerback Loyce Means in the end zone for a 42-yard touchdown catch and the go-ahead score.