TUCSON, Ariz. (AP) -Expected to be the Los Angeles Dodgers' No. 5 starter, James McDonald was pleased after his longest outing of the spring.

The 23-year-old rookie gave up three runs and six hits, while striking out two over 4 1-3 innings in the Dodgers' 10-9 win over the Arizona Diamondbacks on Tuesday.

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McDonald was taken out after giving up a solo homer to Mark Reynolds and a single to Josh Wilson in the fifth.

``It was good to go deeper in the game and stretch my arm out,' McDonald said after throwing 70 pitches. ``My rhythm is coming together. I worked with the breaking ball a little bit more and threw it more for strikes.'

Blake DeWitt finished 3-for-5 with two runs and a homer, and Andre Ethier was 3-for-5 with two doubles and three RBIs for the Dodgers.

Arizona's Eric Byrnes was 2-for-5 with two doubles and two RBIs, and Felipe Lopez had three hits and scored two runs.

Los Angeles reliever Will Ohman gave up a homer and showed rust while making his spring debut. The veteran left-hander, signed on Monday to a one-year minor league contract, was playing catch-up after not being in camp.

``Obviously signing so late I wanted to bring as much attention to myself as possible. I thought I would go up there and give up a dinger to the first guy,' Ohman said, with a laugh.

Ohman got ahead of Chad Tracy for an 0-2 count before allowing a two-run homer to right field. It was the first batter he faced in the fifth inning. The longtime reliever, who has a career 10-9 record in 303 games, walked Conor Jackson before striking out Miguel Montero to end the frame.

``This is a building block. They are looking for me to refine my stuff and get in a position where I am locked in,' Ohman said. ``All I am looking for and I think all the club is looking for is a general progression so it gets better each and every time.'

Ohman, who was 4-1 with a 3.68 ERA in 83 games with Atlanta last year.

Billy Buckner, vying for a spot on the Diamonds' pitching staff, spent the offseason training with an Ultimate Fighting Championship friend. It paid off with Buckner officially being selected for the team after allowing two earned runs in 3 2-3 innings.

Buckner made the team as the Diamondbacks optioned pitchers Leo Rosales and Bobby Korecky to the minors after the game.

``Buckner has pitched well the whole time,' Arizona manager Bob Melvin said. ``He has good stuff and is not afraid to compete.'

The right-hander made a strong case in seven appearances. He lowered his ERA to 3.31, while allowing six earned runs in 17 innings.

Buckner sailed until the fourth when he gave up a solo homer on the first pitch to Casey Blake, followed by a double to DeWitt, who later scored.