The Orioles designated Ragsdale for assignment Monday.

Ragsdale was torched for eight runs over three innings in his major-league debut during Sunday's loss to Toronto and now finds himself off the 40-man roster a day later. It's the second time during the second half that he's been designated for assignment, as he was traded from the Giants to the Orioles in late July after San Francisco booted him from its 40-man roster.

The Orioles placed Suarez on the 15-day injured list Monday with right elbow discomfort.

Suarez pitched well in an abbreviated start during Sunday's loss to the Blue Jays, striking out five over three innings of one-run ball. However, he came out of it with a sore pitching elbow, which will sideline him for the remainder of the season. Suarez had previously missed most of the season with a right shoulder strain. He will undergo an MRI on his elbow Monday night to determine the severity of the injury, per Roch Kubatko of MASNSports.com.

The Orioles claimed Castillo off waivers from the Mariners on Monday.

Castillo will join his third different team this month after previous stints with the Mets and Mariners. The lefty has posted a 4.38 ERA and 23:11 K:BB over 24.2 frames this season in the majors.

The Orioles recalled Hiraldo from Triple-A Norfolk on Monday.

Hiraldo has posted a 5.65 ERA and 12:6 K:BB over 14.1 frames during his time with the big club this season. He will give the Orioles a fresh bullpen arm.

The Blue Jays designated Borucki for assignment Monday.

Borucki made four scoreless relief appearances during his time with the Blue Jays this month, but it wasn't enough to retain his roster spot. The lefty will likely clear waivers, and if he does, he would have the ability to elect free agency.

Gilbert will serve as the White Sox's opening pitcher in Monday's game against the Orioles.

Gilbert will draw his fourth opener assignment this season after he yielded one run with a 6:2 K:BB over four innings in his first three outings as a starter. Sean Burke is likely to follow Gilbert in a bulk-relief role.

The Rays optioned Acton to Triple-A Durham on Monday, Marc Topkin of the Tampa Bay Times reports.

Acton is clearing out to make room on the roster for Joe Boyle, who is back up from Durham to start Monday's game versus the Blue Jays. The 27-year-old Acton made one appearance during his brief time with the Rays, pitching around a couple walks to throw a scoreless frame.

Whitlock allowed one hit and struck out three over a scoreless inning in Sunday's 6-4 win over the Yankees.

The Yankees had clawed their way back from a 6-0 deficit in the first inning and threatened in the eighth, when Aaron Judge led off with a single. Whitlock then shut it down and earned his 24th hold, getting three consecutive punchouts. It was the ninth consecutive scoreless outing for the reliever, who has allowed nine hits and two walks while striking out 14 over 10 innings during the streak.

Kelly earned the save in Sunday's 7-4 win over the Reds, tossing a perfect ninth inning.

The 33-year-old right-hander converted his first career MLB save with a clean frame, closing out the win. Kelly has been a volatile middle-relief option recently and now carries a 3.09 ERA, 1.26 WHIP and 26:16 K:BB across 35 innings. While Kelly isn't expected to see many more save opportunities as the season closes, Sunday's effort showed he's capable of handling the role when called upon.

Chapman struck out one in a perfect inning to earn the save in Sunday's 6-4 win over the Yankees.

Chapman had given up a run in each of his previous two outings, which is the only time he's been scored on in consecutive appearances all year. He bounced back Sunday to convert his 30th save, 11 of which he's earned since the start of August. The closer's recent missteps haven't done much damage to his overall numbers -- he's still at a 1.26 ERA, 0.68 WHIP and 82:14 K:BB across 57.1 innings this season.