Vikings mailbag: Center Ryan Kelly’s return, J.J. McCarthy’s development, and Justin Jefferson’s patience

Ben Goessling, Andrew Krammer and Emily Leiker discuss the final ins and outs before Sunday's game at Lambeau Field. They also open the mailbag and answer your Vikings-related questions about quarterback J.J. McCarthy's development, receiver Justin Jefferson's patience, the offensive line, and more. This week's flashback Friday includes a look back at the start of the 2020 season.