D-backs move back to .500 with victory over Cincinnati.
Johnson won World Series title, four Cy Youngs with team.
The two right-handed pitchers are signed to play for the Wildcats.
The Diamondbacks' Paul Goldschmidt hits his third grand slam of the year in the eighth inning . The home run ended the Reds' J.J. Hoover's streak of 23 scoreless appearances.
CINCINNATI - Paul Goldschmidt doesn't keep track of his RBIs. The rest of the Diamondbacks are voluntarily doing it for him.
The Diamondbacks' Miguel Montero scores the winning run after Jason Kubel's walkoff two-run single rallied Arizona by the Reds, who scored two runs in the ninth to take a 3-2 lead.
PHOENIX - Jason Kubel's legs are feeling better and the Arizona Diamondbacks are reaping the benefits.
Willie Bloomquist greets Paul Goldschmidt at the plate after Goldschmidt hit the first of his two homers. He has 19, one fewer than he hit last season.
Wade Miley threw 104 pitches but couldn't get through the fifth inning. He slipped during a pitch four batters before leaving but seemed to be OK.
PHOENIX - Paul Goldschmidt homered twice, and the Diamondbacks beat the Reds 11-5 Friday night in Johnny Cueto's worst outing in three seasons.
"It hit my glove. I just couldn't get it to stick," said Scott Rolen, whose throw to first was too late in the 10th.
The Giants' Joaquin Arias, who entered in the eighth at shortstop, hits a grounder in the 10th that leads to the winning run.
CINCINNATI - Joaquin Arias hit a grounder toward third base and took off, covering those 90 feet in a blink as a full-to-capacity ballpark went silent with angst.
St. Louis Cardinals Jon Jay scores on a sacrifice fly by Matt Holliday as Cincinnati Reds catcher Dioner Navarro reaches for the throw.
Los Angeles Dodgers' Mark Ellis walks off after being tagged out while trying to stretch a double into a triple in the seventh.
ST. LOUIS - Once again, the St. Louis Cardinals gazed at the big-screen TVs, hoping for a little help. Unlike the previous night, there weren't any plans for a late-night victory party.
Cincinnati catcher Dioner Navarro singles in the ninth. He had a solo homer in the seventh to help the Reds earn a three-game sweep in Arizona.
PHOENIX - The Arizona Diamondbacks didn't have much fun during their 10-game homestand.
CINCINNATI - Jason Kubel returned from a sore hamstring and homered in his first two at-bats on Wednesday night, powering the Arizona Diamondbacks to a 7-1 victory that dropped the Cincinnati Reds back into a first-place tie in the NL Central.