The Arizona Diamondbacks have struggled against the San Diego Padres, but they've been winning series at home in this NL West matchup.
That could be difficult this time around with the Padres improving outside San Diego.
Arizona continues its push for the NL West lead in Friday night's series opener.
After getting swept in their last series against San Diego (46-57) from June 14-16, the Diamondbacks (53-49) have dropped 15 of 21 in this divisional matchup, including six of nine in 2013. Arizona, though, won its second straight home series against the Padres from May 24-26, taking two of three in San Diego's lone visit this season.
The Diamondbacks, one-half game behind the West-leading Los Angeles Dodgers, continue their seven-game homestand after splitting four with the Chicago Cubs. Aaron Hill, out of the lineup the previous two games, went 2 for 4 with a homer and two RBIs in Thursday's 3-1 victory.
The Diamondbacks had dropped five of seven.
The Padres, meanwhile, are tryi...