SCOTTSDALE, Ariz. (AP) - Padres pitching prospect Joe Wieland is still expected to be sent to the minors for more seasoning after an impressive performance in his first spring start.

Wieland struck out four and allowed just two hits in four innings, and San Diego's split squad beat the Arizona Diamondbacks' split squad 8-0 on Wednesday.

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``I like the use of the fastball hitting both sides of the plate and he mixed in some changes, which he needs to do,' manager Bud Black said. ``A good breaking ball and a good curveball to (Aaron) Hill to end the fourth - that was big. A little stress on him and he made some pitches.'

Chase Headley and Carlos Quentin hit back-to-back home runs and Nate Freiman added a three-run homer.

``Our offense stayed on them and a couple of big swings by Q and Chase were good to see,' Black said. ``We added on there in the ninth. All three homers were well struck.'

Patrick Corbin started the game for Arizona and allowed three hits and struck out three in three scoreless innings. Trevor Bauer, the third overall pick of last June's draft, followed Corbin, going two innings and giving up one hit and one walk while striking out three.

``It looked like he had a lot of composure from the first pitch,' Diamondback manager Kirk Gibson said. ``Bauer threw the ball well. He hung an 0-2 curveball and stranded the guy out there. I am sure he was not happy with it but the important thing was he got out of the inning.'

Takashi Saito gave up the home runs to Headley and Quentin, the first two batters he faced.

NOTES: Padres second baseman Orlando Hudson was a late scratch because of a strained right groin. He will miss several days. . For the second consecutive day, Diamondbacks outfielder Justin Upton was hit by a pitch. Last season Upton was hit 19 times to tie for the most in the National league. The Washington Nationals' Danny Espinosa was also plunked 19 times last season . Both benches were warned after Diamondbacks pitcher David Hernandez hit the Padres' Will Venerable in the seventh inning.