Julio Urias, Josh Fields replace Adam Liberatore, Louis Coleman in bullpen.

Louis Coleman

Louis Coleman has made 50 appearances out of the Dodgers’ bullpen this season, second only to Joe Blanton. (imgur.com)

The Dodgers officially recalled Brock Stewart from Triple-A Oklahoma City on Tuesday. The right-hander will start tonight’s game in Colorado, the second start of his major league career.

While that move was expected — Stewart was in Denver with the Dodgers on Monday — a couple unexpected faces showed up before today’s game. Left-handed pitcher Julio Urias and right-handed pitcher Josh Fields will be available out of the bullpen tonight. Fields, who was acquired from the Houston Astros before Monday’s non-waiver trade deadline, will wear number 46.

Two of the Dodgers’ steadiest relievers this season are going on the 15-day disabled list: Louis Coleman with right shoulder fatigue and Adam Liberatore with left elbow inflammation.

Additionally, outfielder Andrew Toles was optioned to Triple-A along with pitcher Josh Ravin. Ravin hasn’t pitched this season while serving an 80-game performance enhancing drug suspension, which expired today.

Pitcher Clayton Kershaw was transferred to the 60-day disabled list. He isn’t eligible to be activated before August 27. That doesn’t materially affect his timetable for recovery, since Kershaw hasn’t begun a throwing program. Kershaw has a mildly herniated disc in his lower back and hasn’t pitched in a game since June.

Coleman ranks second on the club with 50 relief appearances this year, going 2-1 with a 3.70 ERA.

Liberatore has a 2-0 record in 44 appearances this season. He ranks third among NL relievers with a 1.62 ERA.

Toles made his Major League debut on July 8 and posted a .316 batting average with three doubles and an RBI in 16 games.

Stewart, 24, made his Major League debut June 29 at Milwaukee and gave up five runs and eight hits in 5.0 innings to the Brewers in a 7-0 loss. He’s combined to go 9-3 with a 1.80 ERA (22 ER/110.0 IP) in 18 minor league starts this year with Single-A Rancho Cucamonga, Double-A Tulsa and Triple-A Oklahoma City, while limiting opposing hitters to a .197 batting average with a 0.86 WHIP and striking out 121 against only 17 walks in 110.0 innings. Stewart last pitched on July 28, allowing one run on two hits in 6.0 innings in a win at Memphis (83 pitches), and is unbeaten since being promoted to Triple-A on June 10, going 4-0 with a 2.95 ERA (14 ER/42.2 IP) in seven starts with Oklahoma City.

Fields, who was acquired on Monday from the Astros, has split the season between Houston, where he posted a 6.89 ERA (12 ER/15.2 IP) in 15 appearances, and Triple-A Fresno, where he went 1-0 with one save, a 1.65 ERA, a .192 opponents’ batting average and a 0.65 WHIP in 23 games. He last pitched on Saturday with Fresno at Reno (D-backs), striking out two in a scoreless inning of relief. Overall, in 164 big-league games in four big-league seasons from 2013-16 with Houston, the 30-year-old Fields is 9-10 with nine saves and a 4.53 ERA, averaging better than a strikeout per inning in the Majors with 197 Ks in 159.0 innings.

Urías, 19, last pitched on Sunday at Colorado Springs, striking out two in a scoreless inning of relief and is 5-1 with a 1.40 ERA in 11 games (seven starts) with Triple-A Oklahoma City this year. His last big-league appearance was July 21 at Washington, when he allowed one run on five hits in a 4.0-inning start (77 pitches, no-decision), and he’s posted a 1-2 record with a 4.69 ERA in nine big-league starts with the Dodgers this year.