Los Angeles, CA (SportsNetwork.com) - Joc Pederson smacked a grand slam to highlight a five-run second inning and the Los Angeles Dodgers blanked the Arizona Diamondbacks 8-0 in the opener of a three-game set.

Andre Ethier and Justin Turner launched solo shots for the Dodgers, who have won five of their last seven games. Carlos Frias (2-0) scattered four hits and walked one over 5 1/3 scoreless innings.

"Carlos was really good, his slider was good, he threw a lot of strikes but he ran out of gas in the sixth," Dodgers manager Don Mattingly said.

Rubby De La Rosa (2-2) surrendered five runs on three hits and three walks over five frames for Arizona, which has dropped five of its last seven contests.

The Dodgers plated five runs in the second inning to help them race out to a huge lead.

Turner led off the frame with his blast to right center. Andre Ethier singled before Yasmani Grandal and Alex Guerrero walked to load the bases. Pederson then cracked his grand slam into the seats in right center.

"It was one inning he got in trouble with walks and Pederson hit one. When you give free passes you get penalized for it," Arizona catch Tuffy Gosewich said of De La Rosa.

LA added a run in the sixth and two more in the eighth.

Ethier launched his shot to right in the sixth and Scott Van Slyke's two-run single in the eighth made it 8-0.

Game Notes

The Dodgers improved to 11-2 at home. Only the Mets have a better mark ... Pederson's grand slam was estimated at 446 feet. He has five homers on the season ... The Dodgers were 2-for-6 with runners in scoring position, while Arizona finished 0-for-8.