ATLANTA — Jason Heyward, Justin Upton and Dan Uggla homered in the eighth inning, and Juan Francisco hit a pair of solo shots earlier in the game to help the Atlanta Braves win their 10th straight with a 6-3 victory over the Kansas City Royals on Tuesday night. Atlanta's 10-game winning streak is its longest since the club won 15 straight from April 15-May 2, 2000. The Braves are 12-1 and off to their best start since they began the 1994 season 13-1.