A weekly look at what the Seattle Seahawks must fix:

Quarterback Russell Wilson is the one player the Seahawks can't afford to lose, but they are in jeopardy of having that happen if they don't show major improvement in their pass blocking on the offensive line.

This was the team's biggest weakness a year ago, and it appears to be the biggest weakness after three games this season. And improvement is imperative immediately because the Washington Redskins, Seattle's next opponent after this week's bye, are No. 1 in the league with 10 sacks.

According to ESPN Stats & Information research, Wilson was sacked or under duress on a career-high 20 of his dropbacks Sunday (45.4 percent) in the 26-20 overtime victory over the Denver Broncos.

It was the most for any game in his three-year career, including the playoffs. By comparison, Wilson was sacked or under duress on only five of his dropbacks in the Super Bowl last year (18.5 percent).

Overall this season, he has been sacked or under duress on 37.1 percent of his dropbacks, second worst in the league.

The good news is the Seahawks have two weeks to shore things up since this is their bye week before going on the road to play the Redskins on Monday night, Oct. 6.

The interior linemen of center Max Unger and guards James Carpenter and J.R. Sweezy have played well, but the two tackles, including 2012 Pro Bowler Russell Okung, have struggled at times with rushers off the edge. Right tackle Justin Britt has played well as a rookie, but he's still learning and makes mistakes at times.

The Seahawks are high on Britt and believe he is a quality player who will continue to improve each week. Okung briefly left Sunday's game with a shoulder problem, but he's OK.

The Seahawks aren't going to make a change at either tackle spot, so what can they do? One option is something they did late last season in lining up backup tackle Alvin Bailey and a third tackle, or a pseudo tight end, to give the line an extra blocker. They also can keep tight end Zach Miller in to block more, but they've been doing that this season.