Kyle Shanahan realizes that his tackles were rusty

The 49ers got their starting tackles back on Monday night. And they were rudely re-welcomed to action by Seahawks defensive end Jadeveon Clowney. Clowney ran through and around left tackle Joe Staley and right tackle Mike McGlinchey. On Tuesday, coach Kyle Shanahan acknowledged that his tackles were rusty. “I think anytime you haven’t played football [more]