If the Green Bay Packers just don't look like themselves Sunday, it may not have anything to do with their performance on the field.

The Packers will bring a 5-0 record (compiled while wearing their regular green-and-gold uniforms) into Sunday's game against the San Diego Chargers at Lambeau Field. They will be off the following weekend before returning to action Nov. 1 at Denver.The Packers will be wearing their alternate "third jersey," a navy blue and gold ensemble that the team said is a recreation of the "historic" uniform worn from 1937-48. The jerseys will feature a gold yoke across the shoulders, and faded gold pants will be worn with high navy-blue socks.