PHOENIX -- Roy Oswalt threw three ineffective innings and was long gone from the Philadelphia locker room when the game ended.
Manager Charlie Manuel said Oswalt said nothing about being injured. Still, Manuel said, his ace right-hander "wasn't right."
That was obvious.
Daniel Hudson doubled in two runs to help earn his first victory of the season and the Arizona Diamondbacks ended Oswalt's string of 10 consecutive winning decisions by beating the Philadelphia Phillies 7-5 on Tuesday night.
Oswalt (3-1) allowed five runs on six hits with no strikeouts and one walk. He threw 57 pitches, 36 strikes.
"His stuff wasn't good," Manuel said. "His stuff wasn't crisp and his velocity was down. I figured there was no sense in leaving him out there."
Manuel said Oswalt didn't say anything about an injury. Still, the manager said he was a "little concerned."
"We will see what happens," Manuel said. "He wasn't right."
The right-hander had given up five runs in 24 innings in his first four starts this season and had not been the losing pitcher since a July 30, 2010, outing at Washington.
Catcher Brian Schneider said Oswalt's bullpen session was great and there was no indication anything was physically wrong.
"The Roy we have seen the last couple of outings, all the changes were down," Schneider said. "He had a lot of swings and misses. Guys were chasing with two strikes. Tonight they were still at it but up in the zone was where they put the ball in play. They found a lot of holes tonight."
Hudson (1-4) scattered 10 hits in six innings, giving up two runs, striking out six with no walks. His two-run double off Oswalt in Arizona's three-run second inning put the Diamondbacks ahead for good.
"It's definitely huge the way I've been struggling to get out of a jam like that," Hudson said. "It really kind of got my confidence and said 'We can do better than this.' "
The win over Oswalt followed the Diamondbacks' 4-0 victory over the Phillies' Cliff Lee in the series opener on Monday. Arizona goes for its first sweep of the season when the Diamondbacks face Cole Hamels in a Wednesday afternoon game.
"We need to go on a run," Arizona manager Kirk Gibson said. "That's what good teams do."
The Phillies, winners of five in a row coming into Arizona, stranded 10 in losing their second series of the season.
"We left guys on base all night," Manuel said. "We did have better swings and we hit some balls hard tonight but we stranded 10 runners. We had chances there but we didn't get the job done. It is improvement from previous nights, yes. We haven't been getting that many guys on base and we haven't been scoring four or five runs. We will, we have been there before."
Francisco's two-run home run off David Hernandez in the ninth marked the first time in 14 games the Phillies had topped four runs.
Ryan Roberts drove in two runs with an RBI single off Oswalt in the third and a solo homer off the left field foul pole against reliever Mike Zagurski in the sixth. He also made an outstanding over-the-rail catch of a foul ball to end the third.
Kelly Johnson singled twice, stole second twice and scored two times for the Diamondbacks, who had five players with at least one RBI.
The bottom of the order did the damage for Arizona in the second after the Phillies had jumped ahead 1-0.
With two outs and a runner at first, Juan Miranda drew a walk, then Gerardo Parra singled to left to bring in the tying run. Hudson doubled to deep right-center -- perhaps the hardest-hit ball off Oswalt on a night of soft singles -- to bring in both runners and give the Diamondbacks a 3-1 lead.
It was the 24-year-old Hudson's fourth hit, first for extra bases, in seven at-bats this season.
Shane Victorino, who tripled to lead off the game, started Philadelphia's third with a single. After Placido Polanco grounded into a fielder's choice, Jimmy Rollins and Ryan Howard singled, the second bringing in a run to cut it to 3-2. Francisco popped out, then the third baseman Roberts made a standout over-the-rail catch of Ibanez's foul ball to end the inning.
In Arizona's third, Johnson led off with a single, stole second and took third on Justin Upton's' groundout. Drew brought him home with an RBI single, went to second on Miguel Montero's groundout, then scored when Roberts singled to put Arizona up 5-2.
Diamondbacks' relievers loaded the bases on walks with two outs in the Philadelphia seventh before Esmerling Vasquez came on to get pinch-hitter John Mayberry to fly out to right. Johnson singled, stole second and advanced to third on a wild pitch with two outs in the seventh, then scored when Upton singled to make it 7-3.
Hudson has allowed 10 first-inning runs in his five starts. ... Philadelphia remains two shy of its franchise record for most wins in April (17). ... Arizona closer J.J. Putz's wife gave birth to the couple's fourth child, daughter Addison Elizabeth, at 3:47 p.m. Tuesday. ... Johnson stole two bases in a game for the fourth time in his career.