ATLANTA — Jason Heyward is hoping to make it back in time to play for the Atlanta Braves in the postseason, while ailing starting pitcher Brandon Beachy is shooting for the end of September. Heyward joined the team Tuesday for the first time since the slugger was beaned by Mets pitcher Jonathon Niese last Wednesday, breaking the right side of his jaw with a 90-mph fastball. Heyward, who underwent surgery and had two metal plates inserted, hopes to return for the playoffs.