From an Tweet by AJC beat writer Carroll Rogers:
Cox announced today that Jason Heyward has made the team and will be Braves opening day right fielder.
There you have it! Financial considerations be damned, and for good reason, Heyward is the best option for the Braves in right field. Congratulation to Jay-Hey... let the new era of Braves baseball begin.
UPDATE 12:45pm
According to the Braves twitter feed, Heyward will wear uniform number 22.