Jansen was taken out of Wednesday's game against the Astros due to tightness in his right hamstring, Christopher Smith of The Springfield Republican reports.

EDGE Analysis

After displaying some discomfort on the mound during the ninth inning, Jansen was taken out of the game and is now confirmed to be dealing with a hamstring issue. The severity of Jansen's injury remains unknown, but Boston could refrain from using him out of the bullpen for the next few days at the very least.

Jansen was pulled from Wednesday's game against Houston with an apparent injury, Christopher Smith of The Springfield Republican reports.

EDGE Analysis

Jansen appeared uncomfortable on the mound after getting Jon Singleton to pop out in the ninth inning and was immediately removed by a trainer. The Red Sox will take a look at him and provide more details on what is bothering Jansen, but for now the 35-year-old closer should be considered day-to-day.

Jansen allowed one hit, hit a batter and struck out two to record the save in Sunday's 6-5 win over the Yankees.

EDGE Analysis

Jansen allowed a leadoff double then hit a batter to make it interesting. The seasoned right-hander, however, didn't panic. He struck out Aaron Judge on three pitches, Gleyber Torres on four, then induced a flyout to lock down Boston's sweep of New York in Yankee Stadium. Jansen has converted 20 consecutive save opportunities.

Jansen picked up the save in Tuesday's 5-4 victory over the Nationals, striking out one in a perfect ninth inning.

EDGE Analysis

Jansen improved to 28-for-31 in save chances this year. Since July 5, he's worked to a pristine 1.54 ERA over 11.2 innings. Overall, Jansen's ERA is down to 2.91 with a 1.21 WHIP and 48:15 K:BB across 40.1 innings this season.

Jansen picked up the save Sunday against the Tigers, working around a hit in a scoreless ninth inning.

EDGE Analysis

Jansen has now gone 29 appearances without blowing a save -- he's recorded 17 saves while working to a 2.36 ERA in that span (26.2 innings). The 35-year-old right-hander is now 27-for-30 in save opportunities with a 2.97 ERA, 1.25 WHIP and 47:15 K:BB across 39.1 innings this season.

Jansen earned a save against the Royals on Thursday, striking out two batters in a perfect inning of work.

EDGE Analysis

Jansen threw 11 of 16 pitches for a strike while retiring the side in order in the ninth, getting a strikeout to begin and end the frame. The veteran reliever picked up his second save in as many days and boosted his season total to 26, tied for eighth in the majors. Jansen is up to 417 saves in his career, five away from Billy Wagner for sixth place all-time.

Jansen gave up a solo home run while walking one and striking out one in the ninth inning Wednesday to record his 25th save of the season in a 4-3 win over the Royals.

EDGE Analysis

Freddy Fermin's one-out blast over the Green Monster made things nervous for Boston, but Jansen got a break after walking Edward Olivares when pinch runner Dairon Blanco got caught stealing second. It's Jansen's 16th straight successful save conversion, with his last blown save coming May 13, and he's now reached 25 for the 11th straight full season, not counting the 2020 pandemic campaign. With 416 saves for his career, Jansen is six behind Billy Wagner for sixth place on the all-time list, and eight behind John Franco for a spot in the top five.

Jansen (3-5) struck out two batters in a scoreless inning Monday. He earned a win against the Royals.

EDGE Analysis

Jansen fired a quick shutout frame and was given a win after the Red Sox walked off in the ninth inning. He dropped his ERA back down to 2.97 with a 44:14 K:BB after picking up his first win since June 11. Jansen has allowed one run while striking out nine over his last 7.2 frames.

Jansen struck out one in a perfect inning to earn the save in Tuesday's 6-4 win over the Mariners.

EDGE Analysis

Jansen had no trouble protecting a two-run lead, bouncing back after giving up a walk-off home run Saturday versus the Giants. The Boston closer has converted his last 15 save chances, and he's up to 24 saves in 27 tries this season. He's maintained a 3.06 ERA with a 1.30 WHIP and 42:14 K:BB through 35.1 innings.

Jansen (2-5) took the loss Saturday against the Giants. He allowed a solo home run and failed to record an out.

EDGE Analysis

After the Red Sox scored a pair of runs in the top of the ninth to tie the game, Jansen took the mound with the opportunity to force extra innings. However, he would only throw one pitch, as J.D. Davis took him yard for a walk-off home run and handed Jansen his fifth loss of 2023. The outing broke a streak of seven consecutive scoreless appearances (5.2 innings) for Jansen and marked just his third home run given up on the season.