NEW YORK — Oakland’s Bob Melvin was voted Manager of the Year for the third time, winning the American League honor Tuesday after leading the Athletics to the playoffs despite the lowest opening-day payroll in the major leagues. Atlanta’s Brian Snitker won the National League award following the Braves’ surprising first-place finish. Melvin received 18 first-place votes, 19 seconds and one third for 121 points from the Baseball Writers’ Association of America.