It’s conceivable, according Washington Nationals’ General Manager Mike Rizzo, who has said as much from the moment they received a diagnosis on Bryce Harper’s injured left knee, that the Nats’ 24-year-old outfielder will be able to return before the end of the regular season. Considering how things looked at first, and how bad the bone bruise in his knee and strain of his calf were, it’s something of a minor miracle he is this close to returning. At least that’s what Dusty Baker said Tuesday night.