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BOSTON – Jordan Westburg is out of tonight’s Orioles lineup after injuring his right ankle last night in the first inning.

An update is coming later.

Samuel Basallo also is on the bench. Luis Vázquez is starting at third base. Dylan Beavers is in right field. Ryan Mountcastle is the designated hitter.

Coby Mayo is playing first base.

Tonight marks Tomoyuki Sugano’s 24th major league start. He’s posted a 4.13 ERA in 126 1/3 innings, and he’s only the 10th Japanese-born pitcher to win 10 games as a rookie.

Sugano has allowed five runs this month in 17 1/3 innings, and two runs in his last two starts over 12 1/3. Over his last four starts, he’s surrendered six runs in 23 1/3.

Sugano hasn’t faced the Red Sox. Nathaniel Lowe is 1-for-3 against him.

The Orioles have won five of their last six games. They’re 58-67 and can move eight games below .500 for the first time since July 29. They’ve gone 42-33 since May 24.

A win tonight would allow the Orioles to claim three consecutive series for the first time this season.

The Orioles are seeing their second ex-Dodgers starter in two nights. Walker Buehler has a 5.43 ERA and 1.547 WHIP in 21 outings after signing a one-year, $21.5 million contract, and he’s averaging a career-low 6.6 strikeouts per nine innings.

Left-handers are batting .317/.402/.458 against Buehler and right-handers are batting .222/.315/.466.

Buehler faced the Orioles on May 25 in Boston and allowed two runs and four hits in five innings. He’s made three career starts against them and surrendered four earned runs and six total over 16 2/3 innings.

Dylan Carlson is 3-for-5 with two home runs against Buehler. He’s in left field.

For the Orioles

Jackson Holliday 2B
Adley Rutschman C
Gunnar Henderson SS
Ryan Mountcastle DH
Colton Cowser CF
Coby Mayo 1B
Dylan Beavers RF
Luis Vázquez 3B
Dylan Carlson LF

Tomoyuki Sugano RHP

Outfielder Greg Allen declined his outright assignment and became a free agent. He went 0-for-14 with the Orioles.

The Orioles placed right-hander Esteban Mejia on Single-A Delmarva’s development list. He’s met the workload goals set by the organization and will begin a development plan leading into spring training.

Mejia, 18, is the No. 7 prospect in the system, per MLB Pipeline. He struck out 67 batters in 52 innings this season between Delmarva and the Florida Complex League.

For the Red Sox

Roman Anthony RF
Alex Bregman 3B
Jarren Duran CF
Trevor Story SS
Masataka Yoshida LF
Romy González 2B
Nathaniel Lowe DH
Abraham Toro 1B
Connor Wong C

Walker Buehler RHP