It's pretty much inevitable that Washington Redskins quarterback Robert Griffin III's recovery from knee surgery will be the story of the summer in the NFL.
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In other words, you'll be deathly sick of the topic by Week 1. Before that happens, let's watch the Redskins signal-caller do some jumping jacks -- or something approximating jumping jacks -- at a fan event on Saturday.
That looks like a man fully confident he'll be facing the Philadelphia Eagles on Sept. 9 to kick off the Redskins' 2013 season.
Follow Dan Hanzus on Twitter @DanHanzus.