PHOENIX (AP) - Jake Lamb hit his second career grand slam, his first off a left-hander, in the seventh inning and the Arizona Diamondbacks rallied to beat Los Angeles 6-3 on Tuesday night, only the eighth loss for the Dodgers in their last 52 games.

Lamb, who also had a solo home run in the sixth inning, was hitting .143 against left-handed pitchers this season when he hit Tony Watson's 1-2 pitch off the right field foul pole to put Arizona up 6-3.

Justin Turner homered twice for the Dodgers, who led 3-2 entering the bottom of the seventh. Chris Iannetta had a solo home run for the Diamondbacks.

The Dodgers lost for just the fourth time in 29 games since July 4.

Closer Fernando Rodney, who blew a three-run lead in a 5-4 loss at the Dodgers on July 6, threw a scoreless ninth for his 26th save in 31 tries.