Arizona's surge has put it in contention in the tight NL West race.
The Philadelphia Phillies haven't done the Diamondbacks any favors by seemingly strengthening their rivals.
The Diamondbacks look to match their longest winning streak of the season for the second time in two weeks by becoming the latest team to beat Phillies ace Roy Halladay on Saturday night.
Arizona (55-51) has won four in a row and 11 of 14 after opening this three-game set with Friday's 4-2 victory at Philadelphia (47-59).
The Diamondbacks were seven games out of first place in the West before that run, and have since closed within two of division-leading San Francisco, which is in front of second-place Los Angeles by one-half game.
The Phillies continue to complicate matters in the West, especially for Arizona. They sent right-hander Joe Blanton to the Dodgers for future considerations after he was claimed off waivers Friday.
They already dealt outfielders Shane Victorino and Hunter Pence to the Dodgers ...