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Robert Griffin III is back on the Redskins’ practice field at Organized Team Activities, four months after reconstructive knee surgery.

Griffin is able to drop back, set his feet and throw passes. Albert Breer of NFL Network posted videos of Griffin at work, and Griffin does not appear to have any difficulty moving around and passing. He’s not doing any full-speed running, but from watching what he is doing, you wouldn’t know he suffered a major knee injury in January.

Obviously, there’s a big difference between non-contact drills and playing in an NFL game, and Griffin appears to be working primarily with other players who are rehabilitating injuries, rather than partaking in the regular team workouts. But the fact that Griffin is on the field has to be taken as a good sign that all the optimistic talk about Griffin’s recovery proceeding ahead of schedule was justified.

If Griffin has progressed this far from January to May, there’s every reason for Washington fans to be optimistic that Griffin will make enough progress from May to September that he’ll be on the field for Week One.