By Chris Rosvoglou Atlanta Falcons running back Cordarrelle Patterson has been sidelined since Oct. 2 due to a knee injury. He’ll make his return this Sunday against the Los Angeles Chargers, according to NFL Network insider Mike Garafolo. Patterson will be activated off injured reserve this Saturday. At practice earlier this week, Patterson told reporters that he isn’t exactly 100 percent. However, he feels “pretty good” and is ready to rejoin his teammates on the field. “I would say about 90 percent,” Patterson said, via the Falcons’ website. “At this point in time, nobody is 100 percent. We…