LOS ANGELES — The Dodgers have spent most of the season wondering what a full-strength offense might be able to do for them. On Monday night, for the first time since mid-May, they got a glimpse of that.

Prior to the game, Max Muncy and Tommy Edman were activated from lengthy stints on the injured list and slotted into the batting order, giving L.A. as deep of a lineup as it’s had all year. Both contributed in L.A.’s 3-0 win over the Mariners at Dodger Stadium, with Muncy homering, while Edman singled and stole a base in the decisive seventh inning.

“You have Tommy hitting ninth and just adding tremendous length … it’s just a relentless lineup,” manager Dave Roberts said. “When you’ve got Max Muncy hitting seventh in the lineup, that’s saying something.”

Bringing back Muncy and Edman meant some difficult decisions, with Nick Ahmed being designated for assignment and Andy Pages getting optioned prior to Monday’s game as the corresponding moves. But it also signifies that the Dodgers, at least from an offensive standpoint, are at long last able to field a team very close to the one they envisioned on Opening Day. Muncy will resume the everyday third-base role, while Edman — acquired in a three-way Trade Deadline deal involving the Cardinals and White Sox, the same swap that brought right-hander Michael Kopech to Los Angeles — will handle the bulk of center field work, with occasional starts at shortstop mixed in.

“When you look at one-through-nine guys that can take at-bats, that can slug, that can get a hit, that can get to all fields, that’s kind of [how] we put this roster together,” said Roberts. “And finally, we get a chance to see it.”

It was an arduous journey for Muncy to work his way back from the right oblique strain that officially sidelined him on May 17. Oblique injuries are notoriously difficult to heal from, but according to Muncy, his timeline was further delayed by his bottom right rib being popped out of place, causing him additional discomfort and forcing him to put his rehab on pause. Once that was finally diagnosed and treated, his recovery went much more smoothly.

Against the Mariners, the Dodgers’ third baseman demonstrated a healthy swing, pummeling a Statcast-projected 400-foot home run in the seventh inning off Seattle reliever Yimi García. In his previous at-bat, he hit a 95.8 mph lineout.

“The mechanics feel really good,” said Muncy. “Obviously, the timing is not entirely where I want to be, but that’s just something that’s going to come with more time out there on the field. There’s only so much time you can have doing a rehab assignment.”

It was an even longer time down for Edman, who had missed the entire season while recovering from right wrist surgery and had his initial attempt at a rehab stint interrupted by ankle soreness. He resumed rehabbing on July 24 until five days later, when he was dealt to the Dodgers. With L.A., he began yet another rehab assignment. In all, it added up to enough reps to simulate what was essentially his Spring Training.

Edman, whose mother grew up a Dodgers fan and who still has family in the L.A. area that turned out to cheer him on, showed that his own timing was just fine on Monday. He put the ball in play twice before finally coming up with a base hit, which left his bat at 103.3 mph.

“I’m excited to finally be playing in some big league games again,” Edman said prior to the game. “I really haven’t been on the injured list very much my whole career up until this year, so it’s felt weird not getting to play. So I’m excited and hopefully [will] finish this year out strong.”

As Dodgers starter Gavin Stone recorded a career-high 10 strikeouts in seven scoreless innings, the Dodgers’ bats — despite that vaunted depth — were stymied by Mariners right-hander Bryan Woo through six innings.

They finally broke through in the bottom of the seventh, when Gavin Lux homered to break the scoreless tie. Muncy’s two-run homer provided some much-needed insurance as L.A. batted around, a demonstration of just how difficult a time this crew is capable of giving opposing pitching staffs.

“For Max to come up tonight in a big spot and homer gave us some breathing room, gave Joe [Kelly] a little runway, and then [allowed] Evan [Phillips] to finish it,” said Roberts. “But I just really like [that] now, we’re finally healthy as far as on the position-player side.”