PHOENIX -- After watching a five-run lead disappear it what seemed like a blink of an eye, the D-backs hitters kept battling and their efforts paid dividends as they rallied for a 12-9 win over the Rockies on Monday night at Chase Field.
The home run ball proved to be the difference with Yasmany Tomás hitting the first grand slam of his career, Mitch Haniger collecting his first big league homer and Brandon Drury continuing his hot streak of late with a homer of his own.
"A lot of really good at-bats by our offense all night," D-backs manager Chip Hale said. "I thought from first pitch on, I thought we did a good job. Falling behind after getting the lead, the guys just rallied and it was really impressive to watch them on the bench and not lose any confidence. They just kept going out there and playing, which was the key, to play a hard nine innings every night, and it paid off tonight."
Tomas matched a career high with four hits with a pair of singles and a double to go along with the grand slam and five RBIs.
The slam in the sixth off reliever Jordan Lyles gave the D-backs a 10-9 lead.
Grand slams mean 40% off pizza
"That ball jumped out of here," Hale said of Tomas' homer. "He had good at-bats all night."
Tomas declined to speak with reporters following the game.
Drury and Haniger helped give the Arizona bullpen some breathing room with their solo homers in the seventh.
Drury, who was 4-for-5 on the night, is now hitting .418 (23-for-55) in his last 16 games.
"He's getting a lot more playing time, consistently," Hale said. "He's almost gotten to 400 at-bats. Of late, he's been playing pretty consistently, whether it's left or third or second, been getting in there and his at-bats have been becoming better and better."
Haniger, who hit 25 homers and drove in 94 runs for Triple-A Reno before getting a September callup, struck out swinging in his first three at-bats before hitting the homer to lead off the seventh.

"I didn't feel good with the first couple of at-bats going down like that," Haniger said. "I just tried to swing at good pitches that at-bat and see the ball of my bat and just really focus and keep it simple."
Haniger had the home run ball in his locker behind him while he spoke with reporters. When asked what his plans were for it he smiled.
"Probably put it in my house somewhere," he said. "Well, when I buy a house."