McGreevy could be recalled from Triple-A Memphis to make a spot start Sunday against the Dodgers, Daniel Guerrero of the St. Louis Post-Dispatch reports.

The Cardinals are likely to use a spot starter at least once this month as they navigate a stretch with 28 games in 29 days. McGreevy was pulled from Tuesday's start with Memphis after throwing 75 pitches over 4.1 scoreless innings, seemingly in an effort to keep his arm as fresh as possible for a start this weekend. Giving McGreevy a start Sunday would allow extra rest for Andre Pallante, who has a 7.47 ERA over his last three starts.

Hjelle (1-0) earned the win in Wednesday's 6-5 victory over San Diego, allowing one walk and striking out one in 2.2 scoreless innings.

The 28-year-old was recalled from Triple-A Sacramento on Tuesday after Jordan Hicks (toe) was placed on the 15-day injured list. Hjelle threw 18 of his 28 pitches for strikes and retired seven straight batters after allowing a walk. The right-hander had posted a 2.97 ERA, 1.16 WHIP and a 32:10 K:BB across 30.1 innings in 18 appearances with Sacramento before being recalled.

Iglesias gave up a run on two hits and a walk in the ninth inning of Wednesday's loss to the Diamondbacks. He struck out one.

The Atlanta closer was brought in for the top of the ninth with his team down 1-0, but Iglesias couldn't prevent an insurance run from crossing the plate -- something which loomed large when Atlanta scored its only run of the game in the bottom of the frame. Iglesias has been tagged for at least one run in seven of his last 10 appearances, posting a ghastly 7.71 ERA, 2.04 WHIP and 8:3 K:BB in 9.1 innings over that stretch while converting two of three save chances. As yet, there's been no indication manager Brian Snitker is considering removing Iglesias from the closer role, but his strikeout rate on the season has swooned to a career-low 24.8 percent, and there's little sign of a turnaround in his recent performances.

The Cardinals recalled O'Brien from Triple-A Memphis on Thursday.

O'Brien will serve as the 27th man for Thursday's doubleheader against the Royals and will likely be sent back down after the twin bill. The right-handed reliever has made three appearances in the majors this season, allowing three runs with a 2:2 K:BB 2.2 innings.

Rodriguez notched a save against the Padres on Wednesday, striking out one batter in a perfect two-thirds of an inning.

The Giants carried a one-run lead into the ninth inning, and with primary closer Camilo Doval having blown a save and thrown 28 pitches Tuesday, manager Bob Melvin turned to Ryan Walker to shut the door. However, Walker allowed two hits and retired only one batter, so Melvin pulled him and instead turned to Rodriguez. The righty came through, striking out Jackson Merrill and getting Gavin Sheets to pop out to secure his first career major-league save. Rodriguez has been remarkable this season, posting a minuscule 0.66 ERA and 0.62 WHIP with a 39:3 K:BB over 27.1 innings. He has a modest six holds (along with Wednesday's save) across his 26 appearances, but he seems to be working into a higher-leverage role with three of those holds coming over his past seven outings. Doval remains entrenched as the Giants' go-to closer, but considering Walker's inconsistent results, Rodriguez could be a compelling option to close on days when Doval is down or if he were to miss time.

Harrison was diagnosed with a left elbow contusion after getting hit by a comebacker during Wednesday's game against San Diego, Alex Pavlovic of NBC Sports Bay Area reports.

Harrison took a grounder off his elbow during the fifth inning of Wednesday's contest and was immediately pulled from the game. However, it appears he escaped from the incident with only a bruise. A team day off Monday will give Harrison an extra day to rest before his next scheduled start, but the Giants will wait a few days to see how he recovers before they pencil him in for another outing. The southpaw allowed five runs on nine hits and one walk while striking out three batters in 4.2 frames Wednesday and finished with a no-decision.

Hernandez was pulled from Wednesday's game versus the Diamondbacks due to numbness in his right pinky, Mark Bowman of MLB.com reports.

Manager Brian Snitker said after the game that Hernandez looked to be fine after an evaluation from the team's training staff. Atlanta may look to stay away from using Hernandez out of the bullpen for another day or two as a precaution, but a trip to the injured list shouldn't be necessary.

Martinez registered the save in Wednesday's 2-1 victory over Atlanta, allowing one run on no hits and four walks with four strikeouts in 1.2 innings.

It was certainly a shaky outing by Martinez despite allowing no hits, as he gave up a season-high four walks while throwing just 17 of his 37 pitches for strikes. It was encouraging to see manager Torey Lovullo trust Martinez to record five outs for his fifth save of the year, but the hard-throwing right-hander seems unlikely to be available for Thursday's series finale against Atlanta after tossing so many pitches. Despite owning a 5.79 ERA, 1.50 WHIP and 9:5 K:BB over 4.2 innings since coming off the injured list, Martinez still appears to be the favorite for saves in Arizona's bullpen.

Romano (1-2) was charged with the loss in Wednesday's 2-1 defeat to Toronto, allowing one run on two hits with one strikeout in two-thirds of an inning.

Romano was tasked with keeping the game tied at 1-1 in the ninth inning, but he gave up a two-out, walk-off single to Alejandro Kirk. The hard-throwing right-hander has been shaky since retaking the closer's job, recording a 7.11 ERA, 1.89 WHIP and 13:5 K:BB over his last 6.1 innings. Romano has gone 4-for-4 on save chances during this span, so he figures to remain Philadelphia's preferred ninth-inning weapon while leaving the door open for the likes of Orion Kerkering and Matt Strahm if his struggles continue.

Hernandez was removed from Wednesday's game against Arizona due to an apparent hand injury, Lindsay Crosby of AthlonSports.com reports.

Hernandez was favoring his right hand after making a pitch during the eighth inning of Wednesday's contest. It's currently unknown what kind of injury the 28-year-old reliever is dealing with, though Atlanta may offer some clarity in the near future.