Brian McCann slipped on the No. 16 jersey he wore for so many years. Looking to improve on their first division title in five years, the Atlanta Braves agreed Monday to one-year contracts with McCann and former AL MVP Josh Donaldson — a pair of low-risk moves that give the team a chance to make another postseason run while not hindering the long-term development of all those talented young players. Donaldson agreed to a million deal, the Braves confirmed Monday night.