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Red Sox Notebook

Red Sox obtain lefty Matt Thornton from White Sox

Matt Thornton is expected to join the Red Sox on Saturday.

Bob Levey/Getty Images

Matt Thornton is expected to join the Red Sox on Saturday.

OAKLAND, Calif. — The Red Sox did not wait until closer to the trade deadline to improve their bullpen. On Friday night they obtained lefthander Matt Thornton from the White Sox in exchange for Double A outfielder Brandon Jacobs.

The White Sox, sources said, also included $750,000 in the deal to cover some of the $3.47 million Thornton has remaining on his contract. He is owed $2.47 million for this season. There is a team option for 2014 or a $1 million buyout.

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The Sox needed relief help, specifically a lefthander, after Andrew Miller suffered a foot injury in a game against the Angels last Saturday and was lost for the season. That left Craig Breslow as the only lefthander in the bullpen.

“We’ve recognized we had some attrition in the pen this season,” general manager Ben Cherington said during a conference call. “When Andrew went down that sort of added to the issue. We picked up our efforts at that point and had a lot of conversations the last few days to see if there was a fit that made sense earlier in July.”

Miller will soon have surgery and was placed on the 60-day disabled list to make room for Thornton on the 40-man roster. Thornton is expected to join the Red Sox on Saturday.

The 36-year-old Thornton has appeared in 40 games for Chicago this year. He has a 3.86 earned run average and a 1.250 WHIP. Over 28 innings, Thornton has allowed 25 hits and struck out 21.

Lefthanded batters are hitting .173 (9 for 52) with a .617 OPS against Thornton. He has been primarily a specialist for Chicago. Only 18 of Thornton’s appearances have lasted an inning or more.

The Red Sox play 10 consecutive games against division opponents after the All-Star break and wanted to get a second lefthander before then.

“Trying to stabilize and fortify the pen was important,” Cherington said. “He’s had success against lefthanders we’re going to face.”

Thornton averaged 12 strikeouts per nine innings in 2010, when he was an All-Star. That has dipped steadily since, to 6.8 this season. But he still averages 94-95 miles per hour with his fastball and has hit 97 in recent games.

“He’ll fit in very well in our bullpen,” said manager John Farrell. “We can use him in the middle range, the sixth or seventh inning, to match up.”

Red Sox pitching coach Juan Nieves was the bullpen coach of the White Sox for five years and has a lot of familiarity with Thornton.

“There is a certain comfort level there,” Cherington said. “The No. 1 thing is the track record. He is a proven lefthanded relief pitcher and has been effective in the American League for a long time.”

Thornton has three games of playoff experience with the White Sox, those coming in the 2008 American League Division Series against Tampa Bay.

A 10-year veteran, Thornton has a career 3.53 ERA and holds the White Sox record with 512 relief appearances.

Since 2008, Thornton leads all lefthanded relievers in strikeouts with 382. Since the start of the 2006 season, Thornton leads all American League relievers in games (512) and innings pitched (463) and is second in strikeouts with 486.

Jacobs, 22, was a 10th-round pick in the 2009 draft. The athletic outfielder hit .244 with 11 home runs and 44 RBIs for Single A Salem before a recent promotion to Portland.

“He was the most impactful player available to us,” White Sox general manager Rich Hahn said.

Hahn told Chicago reporters that seven or eight teams were interested in Thornton.

Cherington said there is “no specific target” in terms of further trade talks before the July 31 deadline.

“We have some time to see what’s out there,” he said.

Workman to start

The Red Sox will start 24-year-old rookie righthander Brandon Workman on Sunday against Oakland All-Star Bartolo Colon.

Workman pitched two innings in relief in Seattle Wednesday night, throwing 47 pitches. He allowed three runs on four hits in his debut but also struck out four.

Workman was 8-2 with a 3.21 earned run average in 17 appearances (16 starts) for Portland and Triple A Pawtucket this season.

Rookie Steven Wright, who threw 5 innings of scoreless relief Thursday, would be available that day as well.

Delay of game

Clay Buchholz threw 35 pitches in a bullpen session on Friday afternoon. But he will not make a minor league rehab start on Sunday.

Buchholz will instead throw in the bullpen again on Sunday and possibly on Tuesday in New York before the All-Star Game. He would then throw a three-inning simulated game later in the week or stay in the bullpen.

“He threw the ball well. He continues to gain strength,” Farrell said. “In talking to him, that’s probably the thing right now he’s feeling, the continued building back of arm strength.”

Under this latest plan, Buchholz would pitch one minor league game before being activated off the disabled list.

According to Farrell, Buchholz is free of the shoulder pain that has kept him out since June 8.

Based on the schedule the Red Sox laid out, the earliest Buchholz would pitch in a major league game is July 26 or 27. But given the setbacks Buchholz has had along the way, that’s a best-case scenario.

Buchholz was 9-0 with a 1.71 ERA in 12 starts before going on the DL.

“That, to me, is the biggest key for us in the second half. Getting him back to us and taking the necessary steps to rebuild the arm strength,” Farrell said.

Britton next?

Farrell mentioned that the Red Sox would like to see lefthander Drake Britton in the majors, possibly in a relief role.

“For sure,” he said. “A lefthander that has power stuff. We would like to see Drake Britton here. Even if it’s just initially getting his feet, much like it is with Workman, you don’t know how young guys are going to respond.”

Britton was 7-6 with a 3.51 earned run average in 17 appearances for Portland. He had made one start since being promoted to Pawtucket and allowed five runs on 10 hits over 5 innings.

Castiglione sits out

Joe Castiglione, the radio voice of the Sox, missed the game for a family matter but will return on Saturday. Former big leaguer Dave McCarty, who played parts of three seasons with the Sox, called the game with Dave O’Brien . . . Dustin Pedroia was elected to the Arizona Fall League Hall of Fame. He played in the AFL in 2004 for the Scottsdale Scorpions . . . The deadline for signing draft picks came on Friday afternoon. On Thursday, the Sox reached an agreement with fourth round pick Myles Smith, a righthander from Lee University in Tennessee. He accepted $400,000, less than the $454,800 slot value for the pick. Smith was close to signing immediately after the draft but the negotiations went longer than expected. The Sox also signed shortstop Mauricio Dubon (26th round) and righthander Pat Goetze (36th round) before the deadline. The Sox signed all but two of their first 20 picks and 27 of 40 overall. The highest unsigned pick was 13th-rounder Jordan Sheffield, a high school righthander from Tennessee.

Peter Abraham can be reached at pabraham@globe.com. Follow him on Twitter @PeteAbe.
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