Packers’ Polarizing Cornerback Keisean Nixon Demoted to No. 3 Defense

A three-year starter for the Packers, Nixon appears to be going backwards in the competition at cornerback.

GREEN BAY, Wis. — Okay, maybe now Keisean Nixon is being punished.

The Green Bay Packers’ cornerback, who has been a starter in the secondary in each of the last three seasons, wasn’t only working with the No. 2 defense during Wednesday’s practice—at one point, he was running with the third-string unit.

Nixon opened 11-on-11 drills on the boundary opposit…