CINCINNATI (AP) — Rookie Matt McLain hit his first career grand slam and the Cincinnati Reds extended their winning streak to three games with a 9-6 win over the Arizona Diamondbacks on Friday night in a matchup of surprising MLB teams.

The Diamondbacks began the day two games behind the first-place Dodgers in the NL West, and the second-place Reds trailed the Brewers by 2 1/2 games in the NL Central.

Ketel Marte had his sixth career multi-hit game, homering twice with a triple, and Alek Thomas added a homer for Arizona.

Alex Young (4-0) worked a third of an inning and picked up the victory. Alex Diaz recorded his 28th save.

Marte opened the scoring in the first inning with a 351-foot shot to right field. The Reds countered in the bottom of the inning as Nick Sensel scored on a Spencer Steer’s groundout to third.

The Diamondbacks thought they had turned an inning-ending double play in the second. But, replay overturned the ruling that Senzel was out at first and Tyler Stephenson scored to give the Reds a 2-1 lead.

Thomas doubled and scored on Geraldo Perdomo’s single to tie the score at 2 in the third.

After a pair of walks in the bottom of the fourth, Steer, who leads NL rookies in RBIs and drove in three runs Friday, smacked a two-run double to give the Reds a 4-2 lead.

Tommy Henry (5-3) took the loss. The 25-year-old left-hander allowed four walks — three of which scored — four hits and stuck out two in 4 1/3 innigns.

In the fifth inning, Marte tripled off Will Benson’s glove in right, scoring Perdomo with the Diamondbacks’ third run.

Benson atoned for his misplay with an RBI double in the bottom of the inning.

Three batters later, McLain launched an 0-2 pitch from Justin Martinez 366 feet to the opposite field for a grand slam and a 9-3 lead. The 23-year-old shortstop has nine homers in 56 games.

TRAINERS ROOM

Diamondbacks: LHP Andrew Chafin was reinstated from the paternity list and LHP Joe Mantiply was optioned to Triple-A Reno. Chafin and his wife Shelbi welcomed their third child, Bobby, on July 19.

Reds: RHP Tejay Antone (Tommy John surgery) will begin a minor league rehab assignment on July 25. … RHP Luke Weaver is expected to make his next start after being struck on the left arm with a line drive.

UP NEXT

LHP Brandon Williamson (1-2, 4.96), who twice has picked runners off second base, will look to slow the D-backs, one of three teams with 100 or more stolen bases. Arizona has not named a starting pitcher for Saturday.

Arizona						Cincinnati
	ab	r	h	bi			ab	r	h	bi
Perdomo ss-3b	4	2	2	1		De La Cruz 3b	3	1	0	0
Marte 2b	5	2	3	4		Senzel cf	2	2	0	1
Carroll lf	3	0	0	0		Friedl ph-cf	2	0	0	0
Walker 1b	3	0	0	0		McLain ss	4	2	2	4
Gurriel Jr. dh	4	0	0	0		Steer lf	5	0	2	3
McCarthy rf	3	0	0	0		India 2b	4	0	2	0
Rivera 3b	3	0	0	0		Votto 1b	4	0	0	0
Canzone ph	1	0	0	0		Encrncn-Strnd dh	4	1	1	0
Ahmed ss	0	0	0	0		Stephenson c	3	2	1	0
Moreno c	4	0	0	0		Benson rf	2	1	1	1
Thomas cf	4	2	2	1
Totals	34	6	7	6		Totals	33	9	9	9

Arizona	101	010	300	—	6
Cincinnati	110	250	00x	—	9

E–Perdomo (3). LOB–Arizona 5, Cincinnati 9. 2B–Thomas (12), Steer (20), Benson (7). 3B–Marte (6). HR–Marte 2 (17), Thomas (6), McLain (9). SB–McLain (8), Senzel (5).

	IP		H	R	ER	BB	SO

Arizona
Henry L,5-3	4	1-3	4	4	3	4	2
Martinez		1-3	4	5	5	1	1
Adams		1-3	0	0	0	0	0
Frías	1		1	0	0	1	0
Gilbert	1		0	0	0	0	1
Ruiz	1		0	0	0	1	2

Cincinnati
Lively	4	2-3	4	3	3	2	6
Young W,4-0		1-3	0	0	0	0	0
Farmer	1		0	0	0	0	1
Cruz	1		3	3	3	0	2
Sims H,15	1		0	0	0	2	0
Díaz S,28-29	1		0	0	0	0	0

Frías pitched to 1 batter in the 7th.

HBP–Henry 2 (De La Cruz,Votto). WP–Gilbert, Sims.

Umpires–Home, Nate Tomlinson; First, David Rackley; Second, Chris Guccione; Third, Edwin Moscoso.

T–3:06. A–31,824 (43,891).