(SportsNetwork.com) - The struggling San Francisco Giants hope to find an answer to their recent woes and will try to avoid a four-game sweep at the hands of the Cincinnati Reds Sunday at AT&T Park.

The Giants are a miserable 4-14 since June 9 and their lead atop the NL West has dwindled down to just one game ahead of the Los Angeles Dodgers.

San Francisco fell to 0-3 in this series following Saturday's 7-3 loss in 11 innings, as Cincinnati posted five runs in the top of the 11th and finished with 12 hits. Javier Lopez gave up three runs in the 11th to suffer the loss and Jean Machi was reached for two more.

Joaquin Arias had an RBI infield single in the bottom of the 11th for the Giants, who tied the game at 2-2 in the bottom of the ninth on Buster Posey's RBI double. Reds second baseman gave Cincinnati a brief lead with a two-run homer off Giants closer Sergio Romo in the top of the ninth.

"It was too good of a pitch to hit," Romo said of Phillips' shot.

Joe Panik had two hits and an RBI and Giants starter Matt Cain's seven shutout innings went to waste.

The Giants will host St. Louis next for three games and hope Tim Hudson can right both himself and the club when he gets the ball Sunday. Hudson has lost two straight starts and last toed the rubber in a 7-2 setback to San Diego on Tuesday, charged with six runs -- four earned -- in 5 2/3 innings.

Hudson, who gave up seven runs and 12 hits in 4 2/3 innings against the Chicago White Sox on June 18, is 7-4 with a 2.62 ERA this season. The right- hander is 5-1 in eight home starts and 5-1 with a 3.20 ERA in eight career starts against the Reds.

The Reds have won four in a row and 13 of the last 17 games. Zack Cozart had a two-run single, Chris Heisey plated two runs with a triple and Billy Hamilton added an RBI double in the 11th inning for Cincinnati.

Hamilton ended with three hits and Jonathan Broxton nailed down the win with a scoreless 10th inning. Jumbo Diaz gave up a run and a hit in the bottom half to preserve the win and starter Alfredo Simon pitched well in seven innings, allowing one run and three hits.

"San Francisco is a very tough ballclub," Reds slugger Joey Votto said. "Oftentimes, teams assume there will be a (series) split. It takes a lot to take a win away from a very good team on the road, especially a team as high caliber as the Giants. To come back late showed resiliency to fight through that ninth inning and put up five runs. It's very, very difficult to do that on the road."

The Reds, who entered last night's game 0-32 when trailing after eight innings and have won five straight series, have won eight of their last 10 road games and are 5-1 on a 10-game trek.

Hamilton leads National League rookies in hitting, RBI, multi-hit games, runs, hits, total bases, doubles (tied), stolen bases and on-base percentage. He is batting .373 in his last 18 appearances.

Cincinnati will close the trek at San Diego (3 games) and are slated to send Homer Bailey to the mound Sunday at AT&T Park. Bailey is 7-4 with a 4.80 ERA and 0-1 in his past three outings. He was defeated by the Chicago Cubs the last time out in a 7-3 setback on Tuesday and yielded four runs across 5 1/3 innings.

Bailey has a 2-3 record in nine road assignments and is 3-0 with a 4.30 ERA in seven career starts against the Giants.

The Giants won two of the three meetings with the Reds earlier this month.

Cincinnati hasn't posted a four-game sweep since May of 2012 against Atlanta and last took all four meetings with San Francisco from April 18-21, 1985 at Riverfront Stadium. The Reds haven't swept a four-game set by the bay since May of the 1972 campaign at Candlestick Park.