When it finally was over, after the Los Angeles Dodgers pulled off a three-game sweep of the Diamondbacks with a victory in 14 innings late Wednesday night, Kirk Gibson made a promise.

He wasn’t sure what he would do about his unpredictable bullpen, the Diamondbacks manager told reporters, but he vowed he was going to get up early and start thinking about it.

So, naturally, when he met the media before Thursday’s game against the Milwaukee Brewers — a 5-3 Diamondbacks victory in front of 17,531 — the first thing everyone wanted to know was what thoughts the morning brought.

“I lied,” Gibson said. “I slept in.”

Huh?

“Well, I stayed up late,” he explained. “I didn’t leave here until 1:30.

“But I gathered my thoughts.... We’re trying to determine what we can do; whether we stay the course or do something differently.”

Thankfully for the Diamondbacks, starter Wade Miley gave them eight innings on a night when the bullpen was badly taxed. He recovered from a rough first inning in which he allowed two runs on four hits — retiring 13 consecutive batters at one point — and was able to keep his team in the game.

The Diamondbacks rallied from a 3-0 deficit in the middle innings to tie the score thanks to a two-run triple by Adam Eaton and a run-scoring sacrifice fly from Jason Kubel. Then, with two outs and the bases loaded in the eighth, Martin Prado delivered a two-run single to center off reliever Jim Henderson.

“In that situation, I was ready to attack and I was looking for a good pitch — not try to do too much,” said Prado, who is batting .350 (21 for 60) in his past 15 games. “I know he’s got great stuff ... but he gave me a good pitch to hit and fortunately, I hit it.”

Meanwhile, sinkerball reliever Brad Ziegler pitched a scoreless ninth inning to earn his second save of the season. It wasn’t without drama, however, as Ziegler hit one batter and allowed a hit.

Earlier in the day, the Diamondbacks promoted left-handed reliever Eury De La Rosa from Triple-A Reno and, at least temporarily, shipped lefty starter Tyler Skaggs back to the minors.

The move was made because De La Rosa can give Gibson multiple innings out of the bullpen, which has blown a major-league-leading 19 saves so far this season.

The only other arm that can regularly pitch more than one inning belongs to Josh Collmenter, who on Wednesday became the first National League reliever with four appearances of at least four innings in a single season since 2006.