The Cubs recalled Roberts from Triple-A Iowa to serve as the 27th man for Sunday's doubleheader against the Guardians, Jared Wyllys of AllCHGO.com reports.

The right-hander failed to make Chicago's Opening Day roster, but he will receive a look in the majors during Sunday's twin bill. Roberts allowed six earned runs with a 6:2 K:BB over 10 big-league appearances last regular season.

The Twins recalled Acton from Triple-A St. Paul on Sunday.

Minnesota acquired Acton in a trade with Miami on Thursday, and the right-hander will now get a chance to show the Twins what he can do. Acton logged action in just one MLB game last year while with the Rays, walking two batters in a hitless and scoreless inning, and he posted a 4:1 K:BB over two outings spanning 2.1 frames this season in the minors before being called up. In a corresponding roster move. fellow reliever Zak Kent was optioned to St. Paul.

Latz struck out two over a scoreless seventh inning in Saturday's 2-0 loss to the Reds.

Latz, who made a fill-in start for Jacob deGrom last week, has seamlessly transitioned to the bullpen. Saturday's outing was his second appearance out of the 'pen and second scoreless as a reliever. The Rangers are concerned with the left-hander's ability to get deep into games as a starter, so Latz could be an effective option in short bursts.

Santillan struck out one over one scoreless inning to earn a hold in Saturday's 2-0 win over the Rangers.

Santillan threw a 1-2-3 eighth inning, setting down the top of Texas' order, to earn his third hold of the season. The right-hander's velocity remains noticeably down from last season, but it hasn't impacted his effectiveness. Santillan's given up one hit and four walks while striking out seven over five scoreless appearances (5.0 IP). He's been used in the eighth inning of all five outings.

The Royals returned Morgan to Triple-A Omaha following Saturday's doubleheader with the Brewers.

Morgan will head back to Omaha following a dominant relief outing in his Royals debut Saturday. After Kansas City called up the veteran righty from Omaha ahead of the second game of the twin bill and designated him as its 27th man, Morgan proceeded to strike out five batters while allowing two baserunners over three scoreless frames en route to earning his second career save in the Royals' 8-2 win.

With Cade Horton (forearm) set to land on the injured list, Assad is an option to get promoted from the minors and fill the rotation spot, Jordan Bastian of MLB.com reports.

Horton departed Friday's contest after only an inning of work due to right forearm discomfort, and he will be examined more fully to determine the extent of the injury. Following a rain out Saturday, the Cubs don't have to worry about Horton's spot in the rotation again until Wednesday. Assad is a candidate to get the call from Triple-A Iowa, though it appears to be more likely that Colin Rea moves over from the MLB bullpen and into the rotation. Even if Assad isn't needed right away, the Horton injury does move him closer to a promotion if any other Chicago pitchers go down or if Rea is ineffective filling in.

Romano earned a save against the Mariners on Saturday, striking out one batter in a perfect inning of work.

Romano entered in the ninth frame with the task of protecting a 1-0 lead. He got through the inning unscathed thanks in part to right fielder Jo Adell, who robbed J.P. Crawford of what had appeared to be a game-tying leadoff homer. Romano retired the next two batters on a popout and a punchout, giving him three saves in three chances to begin the campaign. He's putting a stranglehold on the Angels' closer role with 4.2 scoreless frames and a 7:2 K:BB through five appearances.

Holmes (2-0) earned the win over San Francisco on Saturday, allowing three hits and walking two batters while striking out four over seven scoreless innings.

Holmes allowed exactly one baserunner in each of his first four innings and then went into shutdown mode. Over his final three frames, he yielded just one baserunner (on a single). Holmes wasn't overpowering, getting just seven whiffs and four punchouts, but he picked up his second win and first quality start of the campaign. Through two outings, he has allowed just two runs across 12.2 frames while posting a 9:5 K:BB.

Duran struck out one batter during a perfect ninth inning to earn the save against the Rockies on Saturday.

Duran entered in the ninth frame with the task of protecting a one-run lead. He did so without any drama, retiring the side in order on just eight pitches. Duran has ended with either a decision or a save in each of his five outings this season -- overall, he has a 1-1 record with three saves in three chances. He's given up just one earned run over 4.2 innings while posting a dominant 7:0 K:BB.

Santana (2-0) earned the win in Saturday's 3-2 victory over the Orioles, striking out one while not allowing a baserunner during the ninth inning.

The right-hander entered for the top of the ninth inning with the game tied 2-2, and he retired the side in order on 13 pitches (10 strikes). That set up Santana for the victory when the Pittsburgh offense came through with a walk-off in the bottom of the frame. The veteran reliever was expected to begin the season as Pittsburgh's primary closer, but it was Gregory Soto that picked up the club's first nine-inning save of the season Friday. Santana has given up just one hit with a 4:2 K:BB through six appearances this year, with him splitting those outings evenly between the eighth and ninth innings. He remains in the mix for saves and is clearly a trusted high-leverage arm, but Soto currently seems to be the favored closing option.