B.J. Upton led off the ninth inning with a homer and his brother Justin followed one out later with another long ball that helped the Atlanta Braves rally past embattled Chicago Cubs closer Carlos Marmol for a 6-5 victory Saturday night.

Justin Upton went 3 for 5 with two RBIs. He also homered in the first and now has five homers in Atlanta’s first five games.

The Braves rallied from a 5-1 deficit with three runs in the eighth off Kyuji Fukijawa and two in the ninth off Marmol.

Justin Upton’s solo shot in the first inning made it 1-all. He followed with leadoff double in the eighth and scored the first of three Atlanta runs that cut the lead to 5-4.

Marmol’s blown save, his second in three chances this week, wasted what would have been a victory for starting pitcher Carlos Villanueva.

The Cubs had taken a 5-1 lead on Nate Schierholtz’s RBI single, Anthony Rizzo’s two-run homer, Luis Valbuena’s solo shot and Wellington Castillo’s RBI single, but Chicago left the bases loaded against Anthony Varvaro and Cory Gearrin in the eighth.

Eric O’Flaherty (1-0) pitched a scoreless ninth despite allowing a hit and walk.

Marmol (0-1) gave up two hits, both solo homers, in one-third of an inning. His ERA ballooned to 27.00.

Marmol had been through a tough week. He was pulled from a save situation after facing four batters and not recording an out in Chicago’s win at Pittsburgh on opening day, but he earned a save on Thursday against the Pirates despite giving up two ninth-inning runs.

The Upton brothers, major offseason acquisitions for Atlanta, became the 25th tandem of brothers to homer in the same major league game and the first since Adam and Andy LaRoche accomplished the feat for Pittsburgh on June 17, 2009.