After the Miami Marlins rookie retired his first nine hitters, the Diamondbacks were ready in the fourth inning. Nick Ahmed hit a grand slam that keyed a six-run outburst as Arizona won 9-2 on Saturday night.
"He shut us down for three innings," Ahmed said. "Guys grinded out some at-bats. We didn't get a lot of hits that inning but we were able to break up the guy's rhythm."
"It was continuing a trend where we couldn't get anything going," manager Torey Lovullo said, noting Friday night's 3-2 loss. "But our guys rallied around one another. We started a little bit of a rally. The right guys at the right time came up and knocked them in."
Alex Young (4-0) allowed two runs and eight hits in six-plus innings. The rookie left-hander struck out two, walked one and has won three of his four decisions on the road.
"After those six runs, I wanted to go out there and get quick outs," Young said.
"First time through, they were very aggressive, swinging at everything," Yamamoto said. "Second time through, they were very patient, waiting for that one fastball and they wouldn't miss it."
Both benches cleared in the eighth after Walker was plunked a second time by Miami reliever Tayron Guerrero. As an upset Walker, who was hit on his left forearm, removed his helmet and walked toward first, Guerrero gestured at the Arizona dugout and exchanged words.
There were no ejections, but plate umpire Bruce Dreckman issued warnings to both teams.
Pinch-runner Tim Locastro replaced Walker and scored on Ahmed's double.
After needing only 35 pitches to get through the first three innings, Yamamoto threw 38 in the fourth. He allowed six runs, two hits and four walks while striking out three in four innings. He has lost consecutive decisions after starting his major league career with four straight wins.
"The bases on balls have been a little bit of an issue," Miami manager Don Mattingly said. "It's something he's going to have to get a hold of. It's hard to sustain success when you're putting people out there too often."
Jake Lamb increased Arizona's lead to 8-1 with his two-run homer off reliever Wei-Yin Chen in the sixth.
Stefan Chricton relieved Young after he gave up Martin Prado's RBI double in the seventh and retired all three batters he faced in the inning. Chricton also pitched a scoreless eighth before T.J. McFarland closed with a perfect ninth.
Miguel Rojas' leadoff homer in the first gave the Marlins a 1-0 lead.
LET'S MAKE A DEAL
Miami traded veteran reliever Sergio Romo, minor league pitcher Chris Vallimont and a player to be named to the AL Central-leading Minnesota Twins for minor league first baseman Lewin Diaz. The 22-year-old Diaz was hitting a combined .297 with 19 home runs and 61 RBI in Class A and Double-A.
Walker had noticeable swelling on his left arm after absorbing Guerrero's 98 mph pitch. The Diamondbacks first baseman doesn't believe Guerrero threw at him intentionally but was proud of how his teammates reacted to the reliever's gestures toward their dugout.
"I love it. It gives me so much confidence to have teammates like that," Walker said. "They had my back."
Lovullo objected to his team being issued a warning.
"Our guys were chirping from the dugout and that's part of the game," Lovullo said. "Protecting one another. Figure it out, throw the ball over the plate. Guerrero took exception to that, stepped off the mound and basically called out our whole dugout. I felt we were bystanders in the whole process and are reprimanded. And I don't like that. We did nothing wrong."
Mattingly understood why the Diamondbacks got upset but said Guerrero didn't throw at Walker intentionally.
"I'm 100 percent knowing he didn't do it on purpose, but you also know the other side," Mattingly said. "You know the frustration when the same guy gets hit twice in the same area."
Diamondbacks: OF-C Blake Swihart (oblique) homered on a rehab assignment Friday with Triple-A Reno. Swihart has alternated between designated hitter and outfield since he joined the Aces earlier in the week.
Marlins: RHP Austin Brice (forearm strain) began a long toss program. Brice has been sidelined since July 14.
Diamondbacks: LHP Robbie Ray (9-6, 3.95 ERA) will start Sunday as he continues to be mentioned in trade talk before Wednesday's deadline. Ray has won his first four outings in July.
More AP MLB: https://apnews.com/MLB and https://twitter.com/AP-Sports
Mark Reynolds says he's retiring after 13-year run
Mark Reynolds, who hit at least 30 homers four times and led the majors in strikeouts three times, is retiring at age 36.
Poll: Sports fans won't attend games without coronavirus vaccine
A majority of fans in a recent poll said they would not attend games before a vaccine is developed for coronavirus.
New York Yankees most valuable MLB team at $5 billion, Forbes estimates
Forbes estimates the New York Yankees are baseball's most valuable franchise at $5 billion, up 9% over last year and 47% more than the No. 2 Los Angeles Dodgers at $3.4 billion.
A three-sport trick shot you have to see to believe
A left-hander serves a volleyball ball over the house and receives a fortuitous bounce into the hoop to complete a wild trick shot.
Mariano Rivera: Healthcare workers are the real heroes
Former Yankee Mariano Rivera expresses extreme gratitude for the healthcare workers on the front line of the coronavirus pandemic.
The most hyped prospect ever for all 30 MLB teams
Bryce Harper, Ken Griffey Jr. and Bo Jackson lived up to their billing. Todd Van Poppel and Gregg Jefferies? Not so much.