According to the Elias Sports Bureau, the Uptons became the fourth pair of brothers to hit home runs as teammates in the same inning. Hank Aaron and Tommie Aaron did it in similar fashion while playing for the Braves in 1962.
Trailing the Cardinals, 6-3, entering the bottom of the ninth, the Braves received a pinch-hit solo home run from Tommie Aaron. Hank capped the comeback with a walk-off grand slam later in the inning.
Justin Upton's walk-off home run on Saturday made him the first player in Major League history to hit five home runs through the first five games ever played for a new organization. The last player to hit five home runs through the first five games of a season was Detroit's Chris Shelton in 2006.
Mark Bowman is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.