By JONATHAN DALTON

The Sports Xchange

PHOENIX -- Paul Goldschmidt homered and Zack Greinke threw six solid innings to lead the Arizona Diamondbacks to an 8-7 victory over the San Diego Padres on Saturday night.

Michael Bourn had three hits and two RBIs and Jake Lamb also drove in a pair of runs for the Diamondbacks, who snapped a four-game losing streak.

Matt Kemp homered and Hector Sanchez hit a two-run pinch single in the ninth for the Padres, who have lost five of six.

The Padres rallied in the ninth against Brad Ziegler. Yangervis Solarte and Melvin Upton Jr. each singled to right and advanced when Brett Wallace grounded out to first. Derek Norris hit a high chopper that Ziegler fielded but threw past Goldschmidt, scoring Solarte and putting runners on second and third.

Sanchez lined a two-run single to right to cut the Diamondbacks' lead to 8-7. But Alexi Amarista grounded into a double play to end the game.

Greinke (6-3) allowed four runs on six hits over six innings, walked one and struck out two for his third straight win. At one point, Greinke retired 10 straight hitters and 11 of 14 before the Padres scored three in the sixth on three doubles, a walk, a single and a sacrifice fly.

Padres starter Cesar Vargas (0-3), in contrast, couldn't escape the second inning. Vargas allowed seven runs on six hits and two walks in 1 2/3 innings. Vargas struck out one and threw 61 pitches to get five outs.

Kemp's two-out homer off the facing of the second deck in left field gave the Padres a 1-0 lead in the first, but the Diamondbacks answered quickly.

Bourn drew a one-out walk and went to third on Goldschmidt's bloop double to shallow right field. Lamb followed a sharp two-run single to right for a 2-1 Arizona lead.

The Diamondbacks poured on the offense in the second inning against Vargas.

Chris Owings singled and Greinke, after failing twice to lay down a sacrifice bunt, singled up the middle. Nick Ahmed walked to load the bases and Owings came home on a sacrifice fly by Jean Segura to make it 3-1.

Bourn then hit a two-run single to center, scoring Greinke and Ahmed ahead of Goldschmidt's towering home run to left that put the Diamondbacks ahead 7-1.

Vargas retired Lamb before he was pulled in favor of Luis Perdomo, who closed out the inning.

Perdomo held Arizona in check in until the fifth when Lamb walked, went to third on a soft single to center by Welington Castillo and scored on a wild pitch to extend the Diamondbacks' lead to 8-1.

NOTES: A day after placing RHP Rubby De La Rosa and RHP Shelby Miller on the 15-day disabled list, the Diamondbacks announced their starters for Sunday and Monday. RHP Archie Bradley, who threw eight shutout innings in his last start for Triple-A Reno, will start the series finale against San Diego on Sunday. LHP Edwin Escobar, claimed off waivers from Boston on April 29, will take the mound Monday for the first of a four-game, home-and-home interleague series against Houston. Roster moves to add Bradley and Escobar to the 25-man roster have not been announced. ... The Padres activated LHP Matt Thornton from the 15-day disabled list and optioned LHP Keith Hessler to Triple-A El Paso. Thornton made San Diego's opening day roster but did not make an appearance before being placed on the disabled list April 8, retroactive to April 4, with tendinitis in his left Achilles. Thornton threw three scoreless innings in rehab assignments with Single-A Lake Elsinore. ... Padres 2B Yangervis Solarte entered Saturday's game with three homers in his past two games. Solarte missed 38 games with a right hamstring string before returning May 21. ... The Padres' three-homer fifth inning in Friday's victory was the team's first three-homer inning since Aug. 10, 2008, at Colorado.