Swanson gave up a run on two hits in one-third of an inning Monday to record his fifth hold of the season in a 5-1 win over the White Sox.

The right-hander served up a solo shot to Gavin Sheets, the fifth homer Swanson has given up in only 13.2 innings this season. He still carries a 9.22 ERA, but most of that damage came early in the season -- over his last nine appearances, Swanson has a 3.52 ERA, 1.17 WHIP and 6:2 K:BB in 7.2 innings. Monday's hold was his first in May, and he appears to be close to regaining a regular spot in the Blue Jays' high-leverage crew.

Munoz earned a save against the Astros on Monday, striking out two batters in a perfect inning of work.

Munoz had just a one-run lead to work with when he came into the game in the ninth inning, but he made things look easy with a perfect frame. The right-hander now was nine straight successful save conversions since blowing his lone save of the season against Colorado on April 21. Munoz has given up just one earned run over his past 14 appearances and has recorded an impressive 21:2 K:BB across 16 innings during that span.

Duran picked up the save Monday against Kansas City. He pitched one-third of an inning with no strikeouts, allowing one unearned run on two hits.

Duran entered to collect the last out with runners on second and third and a four-run lead. The Twins reliever barely survived as a hit-by-pitch, two hits and a fielding error allowed three runs to cross. However, after all that chaos, Duran promptly retired Bobby Witt via a one-pitch groundout with runners on second and third to walk away victorious. The flamethrowing righty has secured the last four Minnesota saves, posting a 2.70 ERA and 3:1 K:BB over 3.1 innings during that span.

The Astros recalled Speas from Triple-A Sugar Land on Monday.

The move comes with Houston placing right-hander Cristian Javier on the 15-day injured list due to right forearm discomfort. After the Athletics designated Speas for assignment May 8, he was picked up by the Astros two days later. Since then, the right-hander has appeared in four games with Triple-A Sugar Land, giving up two runs on six hits and two walks while striking out five over three innings. Speas will provide the Astros right-handed depth out of the bullpen.

The Twins are slated to call up Castillo from Triple-A St. Paul, Do-Hyoung Park of MLB.com reports.

The plan had been to add Castillo to the roster prior to Monday's game versus the Royals, but travel issues could push the transaction to Tuesday. Castillo, 30, has collected a 2.50 ERA and 22:6 K:BB over 18 innings with St. Paul after inking a minor-league pact with the Twins in late March.

Blue Jays manager John Schneider said Monday that Green (shoulder) could be activated from the injured list as soon as Tuesday, Keegan Matheson of MLB.com reports.

Green is back with the club in Chicago for its series against the White Sox and his return is imminent. The veteran reliever has been sidelined since mid-April with right shoulder strain and made three scoreless rehab appearances with Triple-A Buffalo.

Voth (2-0) got the win and was also credited with a hold against the Nationals on Sunday, firing a perfect eighth inning during which he recorded two strikeouts.

Ryne Stanek struggled in the seventh inning while allowing two runs, narrowing the Mariners' lead to 6-5, but Voth served as a highly effective bridge to Andres Munoz in the ninth by retiring the side on a scant 11 pitches. Voth had allowed at least one earned run in three of his previous four outings -- including two straight -- but he still holds a respectable 3.80 ERA and impressive 0.98 WHIP across 19 appearances.

The Twins activated Winder (shoulder) from the 60-day injured list Monday and optioned him to Triple-A St. Paul, Betsy Helfand of the St. Paul Pioneer Press reports.

Winder has been out all season with a scapular stress fracture in his right shoulder, an injury which was first discovered last October. He posted a 6.39 ERA in 12.2 rehab innings, although that came with a 17:4 K:BB. Winder should get another shot with the Twins later this season, but for now he'll try to sharpen things up at St. Paul.

The Orioles optioned Vespi to Triple-A Norfolk on Monday.

Vespi is clearing out to make room for Thyago Vieira, who has officially been added to the roster after being acquired via trade over the weekend. The left-handed Vespi has made one appearance with the Orioles this season, throwing a scoreless inning.

Miller (elbow) is slated to begin a rehab assignment with Triple-A Toledo on Tuesday, Evan Petzold of the Detroit Free Press reports.

Miller required a hydrodissection procedure to combat right ulnar nerve inflammation and says he's now "feeling a lot better." The reliever threw his third bullpen session since landing on the injured list on Sunday and is now ready to test things out in games. Miller shouldn't need too many rehab appearances before being activated.