The D-backs have been living on the edge this season. The team has played in an MLB-leading 16 one-run games and is 10-6 in those contests.
It already happened twice in their current series against the Phillies, with the D-backs winning Thursday, 2-1, and Friday, 3-2. Philadelphia then got a tight 3-1 win Saturday. The two teams will square off Sunday in the series finale at Chase Field.
Being tested this much so early in the season is something Arizona manager Kirk Gibson sees as a benefit.
"I think it's a good sign that we've played decently enough to stay in the games, that's where you want to be," Gibson said. "It's hardened you in all those games. It's good, it's what you want."
Brandon McCarthy will be on the hill for the D-backs, still looking for his first win of the season. He's 0-3 in seven starts with a 6.75 ERA.
In his best outing of the season on Tuesday against the Dodgers, the right-hander allowed three runs on eight hits in 6 1/3 innings of work in a no-decision.
He'll be up against Phillies right-hander Kyle Kendrick, who continues to be the team's most consistent starter this season.
Kendrick (4-1, 2.45 ERA) allowed two runs on six hits in seven innings against the Giants on Tuesday for his third straight win. The outing also marked the right-hander's sixth straight quality start.
Leading the rotation with Roy Halladay on the disabled list, Kendrick understands that this is when the team needs him the most.
"We've just got to step up," Kendrick said. "Obviously you hate to lose a guy like that. He's been good for a long time, so everybody has to step up more by themselves. For us as starters, we've just got to try to give us a chance to win every game. That's all you can do. Try to pitch as deep as you can."
Phillies: Cloyd optioned, De Fratus called up
• In a swap of right-handers, Tyler Cloyd was sent back down to Triple-A Lehigh Valley, with Justin De Fratus being called up in his place.
"We definitely need help in our 'pen," Phillies manager Charlie Manuel said before Saturday's game. "And hopefully [De Fratus] can give it to us. Spring Training, we didn't want to send him out. We liked everything about him except we wanted him to get his command, location better. We got good reports on him. He's got a good arm so hopefully he can help us."
Cloyd's stay with the Phillies lasted just one game, with the right-hander tossing 6 1/3 innings and allowing just two runs on two hits in Friday's loss to the D-backs.
De Fratus, 25, worked out of the bullpen for the IronPigs and was 3-0 with a 1.89 ERA in 13 appearances.
D-backs: Harris impresses in debut
• When Will Harris was called up on Wednesday with J.J. Putz landing on the disabled list, Gibson said he'd try to ease the right-hander into action.
That isn't exactly how things worked out, with Harris getting the first out of the eighth inning Friday in a tie game against the Phillies. He did so by striking Michael Young out on four pitches.
"If you look at how to get a guy's feet wet, I'd rather do it that way than put him in in a blowout," Gibson said before Saturday's game. "He threw a really good sequence and he'll be better prepared because of it. Anybody is going to be nervous on a new team, you want to impress and he did a good job."
Harris converted the final two outs of the eighth inning Saturday, giving up a hit and striking out pinch-hitter Laynce Nix with the bases loaded.
• With Triple-A Reno pitchers hitting for themselves next week, the D-backs sent Adam Eaton (elbow) to Class A Advanced Visalia on Saturday to resume his rehab assignment as a designated hitter.
• In seven games (six starts) against the D-backs, Kendrick is 0-2 with a 6.06 ERA.
Quinn Roberts is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.