CINCINNATI (AP) — With yet another meltdown, the Cincinnati Reds’ bullpen became historically bad.

The Reds roughed up Johnny Cueto in his return to Great American Ball Park, but the San Francisco Giants rallied against Cincinnati’s relief corps, riding Brandon Crawford’s three-run homer to a 9-6 victory Monday night.

Reds relievers couldn’t hold a 6-3 lead in the seventh.

Brandon Belt and Gregor Blanco singled in runs off J.C. Ramirez (0-2). Crawford connected off Drew Hayes for his third homer and an 8-6 lead. Crawford also singled home a run in the ninth, giving him four RBIs against the Reds’ bullpen — his total for the previous 17 games combined.

Crawford’s homer was the 22nd allowed by Reds relievers in 26 games, by far the most in the majors.

It was the 20th straight game in which Cincinnati’s bullpen has given up at least one run, tying the 2013 Rockies for the longest such streak in the majors since 1900, according to information from the Reds provided by the Elias Sports Bureau.

“It’s hard finding a recipe right now,” manager Bryan Price said. “We’re bringing up guys who might not be ready. Guys are pitching out of their roles. We’ve got to get healthy. They’re getting a lot of opportunities. Nobody’s rotting down there.”

Joey Votto hit a three-run homer as the Reds piled up six runs in the third inning off Cueto, who got a warm welcome from his former teammates and fans before the game. It was Cueto’s worst showing since he gave up eight runs during Kansas City’s 11-8 loss at Toronto in the AL Championship Series last season.

“Things didn’t come out the way I wanted to,” Cueto said through a translator. “I felt normal. There’s nothing I could do. The game just changed right there.”

Vin Mazzaro (1-0) retired two batters. Santiago Casilla set down the side in the ninth for his fifth save in seven chances.

Price and numerous Reds players embraced Cueto during batting practice. Most of the 13,829 fans applauded as he took the mound in Cincinnati for the first time since the Reds traded him to Kansas City last July, the start of Cincinnati’s rebuild. Cueto signed a $130 million, six-year deal with the Giants in the offseason.

Cueto came to bat with the bases loaded in the second inning and singled home a pair of runs off Brandon Finnegan, but the right-hander couldn’t hold an early three-run lead.

The Reds sent 11 batters to the plate for six runs in the third. Billy Hamilton doubled home the first run, Votto hit his third homer, and Jay Bruce had an RBI triple.

The Reds put together three singles, two walks, a double, a triple, a homer and a stolen base during the inning.

“It was fun getting a chance to face him,” Hamilton said. “From playing behind him, I’ve seen all of his pitches. He’s a great pitcher.”

BEATING UP THE REDS

The Giants are 6-2 against the Reds over the last two seasons, including 4-1 at GABP. Brandon Belt is 17 for 34 during those eight games with three homers, nine extra-base hits and 11 RBIs.

TRAINER’S ROOM

Giants: Called up OF Mac Williamson from Triple-A Sacramento while Angel Pagan recovers from a mildly strained left hamstring, which is expected to sideline him for four or five more days. … 2B Joe Panik was out of the lineup for the third straight game with a sore groin. He was available to pinch-hit.

Reds: An MRI revealed that C Devin Mesoraco has a torn labrum in his left shoulder. He went on the 15-day DL and C Ramon Cabrera was called up from Triple-A Louisville. … SS Zack Cozart was out of the lineup with a sore right knee, which underwent reconstructive surgery last year. It’s expected to bother him occasionally all season.

UP NEXT

Giants: RHP Jeff Samardzija (3-1) makes his sixth start of the season, trying for a notable win. He is 1-5 in 24 career appearances — including 10 starts — against the Reds with a 4.30 ERA. He is 0-5 in his last nine starts against them.

Reds: RHP Jon Moscot (0-2) might make his fourth start. In his last one against the Mets on Wednesday, he was bothered by soreness in his left shoulder, which required surgery last year. The Reds will decide early in the day whether to let him pitch.

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Follow Joe Kay on Twitter: http://twitter.com/apjoekay

Giants 9, Reds 6
San Francisco                    Cincinnati
ab    r    h    bi            ab    r    h    bi
Span cf    5    0    1    1    B.Hamiltn cf    4    1    1    1
MattDuffy 3b    4    0    0    0    DeJesus ss    3    1    2    0
Posey c    4    1    2    0    Votto 1b    4    1    1    3
Pence rf    4    2    1    0    Phllips 2b    4    1    1    0
Belt 1b    4    2    3    1    Bruce rf    4    1    1    1
Willamson lf    2    1    0    0    Suarez 3b    3    0    0    0
G.Blanco ph-lf    2    1    1    1    Schebler lf    4    0    1    1
B.Crawfrd ss    5    1    2    4    Barnhart c    4    1    1    0
Tmlnson 2b    5    1    2    0    Finnegan p    1    0    0    0
Cueto p    2    0    1    2    Duvall ph    1    0    0    0
Gillespie ph    1    0    1    0    J..Ramirez p    0    0    0    0
Ja.Lpez p    0    0    0    0    Hayes p    0    0    0    0
Mazzaro p    1    0    0    0    Hoover p    0    0    0    0
Osich p    0    0    0    0    Pacheco ph    1    0    0    0
Brown ph    1    0    0    0
Casilla p    0    0    0    0
Totals    40    9    14    9    Totals    33    6    8    6

San Francisco    030    000    501    =    9
Cincinnati    006    000    000    =    6

DP—San Francisco 1, Cincinnati 1. LOB—San Francisco 9, Cincinnati 3. 2B—Pence (4), B.Hamilton (6). 3B—Belt (2), Bruce (2). HR—B.Crawford (3), Votto (3). SB—Tomlinson (2), Schebler (1). S—Finnegan (1).
IP    H    R    ER    BB    SO
San Francisco
Cueto    5    7    6    6    2    8
Lopez    0 2-3    0    0    0    0    1
Mazzaro W,1-0    0 2-3    1    0    0    0    0
Osich H,4    1 2-3    0    0    0    0    0
Casilla S,5-7    1    0    0    0    0    2
Cincinnati
Finnegan    6    6    3    3    3    4
Ramirez L,0-2 H,1     1-3    4    4    4    0    1
Hayes BS,1    1 2-3    3    2    2    1    2
Hoover    1    1    0    0    0    0
Hayes pitched to 2 batters in the 9th
HBP—by Finnegan (Williamson).
Umpires—Home, James Hoye; First, Chad Fairchild; Second, Jim Joyce; Third, Marvin Hudson.
T—3:17. A—13,829 (42,319).