By JEFF BARTL
(AP) -- The Arizona Diamondbacks got a lift from struggling Justin Upton to end their longest losing streak of the season in their last contest.
Trevor Cahill hopes it's his turn to break out of a slump.
He'll be on the mound Saturday night when Arizona hosts the first-place Los Angeles Dodgers.
Upton didn't have an extra-base hit in 31 at-bats over his previous eight games before delivering a two-run triple in a five-run fifth inning that propelled Arizona to a 5-3 win over the Dodgers on Friday.
Upton, who was benched for a stretch of games at the beginning of June, entered the contest in a 3-for-19 slide, but his big hit helped the Diamondbacks (40-43) end a six-game skid.
He's been a frequent target of boos from the home crowd lately, and he made his feelings clear Friday.
"To be honest with you, I don't care anything what the fans think of me," Upton said. "My teammates, my coaches, they know I come here and I bust it every single day. I try to do everything I can to help this team. My teammates have my back and whatever the fans want to think, they can think."
Fans may begin turning on Cahill (6-7, 3.63 ERA) if he can't bust out of his own slump.
The right-hander allowed four runs - two earned - in six innings of a 6-2 loss to San Diego on Monday.
"I didn't feel comfortable out there the whole game," Cahill said.
He's 1-2 with a 7.94 ERA over his last three starts after going 3-2 with a 2.93 ERA in his previous seven.
Cahill gave up one run in six innings of Arizona's 8-7 loss to Los Angeles on May 22 and is 1-0 with a 0.79 ERA in two career starts against the Dodgers, whose NL West lead was trimmed to one-half game over San Francisco and six over Arizona.
Los Angeles (47-38) had won three straight overall prior to Friday's loss, its ninth in the last 11 road games.
Bobby Abreu went 3 for 5 and Adam Kennedy hit his first homer of the season.
"We left ourselves with all kinds of chances tonight and didn't execute," manager Don Mattingly said. "We really swung the bats pretty good. We just didn't get the hit when we needed it."
Chad Billingsley (4-8, 4.20) will try to avoid losing five consecutive starts for the first time.
After allowing 11 total runs in his first two outings during that stretch, the right-hander had his second straight quality start Monday against Cincinnati, allowing three runs in six innings of an 8-2 loss.
He had been throwing well until hitting the Reds' Zack Cozart in the helmet in the fifth inning and then proceeded to allow three runs in the sixth.
"He had been really good, aggressive, and I felt like it shook him up a bit," Mattingly said.
Billingsley had a rough outing against Arizona on May 15, giving up four runs and eight hits in four innings of a 5-1 loss. He's 1-2 with a 6.55 ERA in his last four starts versus the Diamondbacks.
Los Angeles has won seven of the last 11 meetings in Arizona.
Updated July 7, 2012