ATLANTA — Justin Upton is having quite a month. Upton homered and had three RBIs, Jason Heyward drove in the go-ahead run in the seventh inning and the Atlanta Braves beat the Miami Marlins 5-2 on Friday night for their third straight win. With 28 RBIs in 25 games since Aug. 1, Upton considers this to be the best month of his eight-year career.