PHOENIX -- The Padres will attempt to pull off a real rarity on Sunday at Chase Field: a series sweep.

Only once this season have the Padres managed a three-game sweep, and that happened June 5-7 against the New York Mets at PETCO Park.

Strong pitching in the first two games of this series against the Diamondbacks has placed the Padres in position for only their second three-game sweep of the year.

On Friday, Cha Seung Baek took a no-hitter into the sixth inning. A day later, Jake Peavy tossed seven scoreless innings in a 3-0 victory over the Diamondbacks.

The Padres put the ball in the hands of right-handed Josh Banks on Sunday. It was Banks who allowed one run in a complete-game victory over the Giants on May 31.

But Banks hasn't won since, going 0-3 with two no-decisions in his last five starts.

This will be the first time Banks has pitched against the Diamondbacks, a team that has scored three runs in the first two games of this series.

Pitching matchup
SD: RHP Josh Banks (2-3, 2.89 ERA)
Banks was upstaged by Colorado's Aaron Cook in his last start, though he didn't pitch too badly himself. Banks, the former waiver-wire claim from Toronto, allowed no runs through four innings. But Banks, who has helped hold together an injury-riddled rotation, ran into trouble during the fifth inning. Banks allowed four runs over five innings in losing his third consecutive start. Still, Banks has a 2.89 ERA and hasn't faced the Diamondbacks before.

ARI: LHP Randy Johnson (4-7, 5.46 ERA)
Johnson had a miserable start the last time out, lasting just 3 2/3 innings, allowing eight hits and seven runs, including three home runs against the Brewers in a loss. The 44-year-old left-hander toiled on the mound, throwing 93 pitches in the effort. The Big Unit has lost six consecutive starts and hasn't won since May 18. Johnson is 15-5 with a 2.44 ERA in his career against the Padres, and is 1-1 against them in two starts this season.

Tidbits
After not being available the last two games of a series in Colorado and the first game of this series on Friday in Arizona because of a cranky right elbow, long reliever Brett Tomko was listed by manager Bud Black as being available on Saturday. ... Right fielder Brian Giles will likely get a day off on Sunday against Johnson. Giles has been battling a sore hamstring and came out of Friday's victory over the Diamondbacks early to, as Black said, "get off his feet." Giles started on Saturday. ... Reliever Kevin Cameron, out since May with a sore elbow, threw a simulated game on Friday at the Padres' training facility in nearby Peoria, Ariz. He could appear for the Padres entry in the Arizona League sometime next week.

Tickets
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On the Internet
 MLB.TV
 Gameday Audio
•  Gameday
•  Official game notes

On television
• 4SD/704-HD

On radio
• XPRS 1090/105.7 FM , XEMO 860 (Español)

Up next
• Monday: Padres (Greg Maddux, 3-6, 4.04) vs. Marlins (Ricky Nolasco, 9-4, 3.94), 7:05 p.m. PT
• Tuesday: Padres (Randy Wolf, 5-8, 4.59) vs. Marlins (Andrew Miller, 5-7, 4.98), 7:05 p.m. PT
• Wednesday: Padres (Cha Seung Baek, 2-4, 4.93) vs. Marlins (Scott Olsen, 4-4, 3.96), 12:35 p.m. PT