Jefferies (elbow) will begin a rehab assignment with Triple-A Indianapolis on Friday.

Jefferies has been out of commission for nearly two months with right elbow inflammation, so he will probably require multiple rehab appearances. Once the Pirates decide the right-hander is ready, he could be used in long relief.

The Pirates placed Heller on the 15-day injured list Friday with right shoulder inflammation.

Heller tossed 7.1 scoreless innings covering his first four appearances after being recalled Aug. 10 but had surrendered four runs over his last two outings, so it's possible the shoulder has been bothering him for a bit. It's not clear how long he might be sidelined.

Butto (6-3) picked up the win Thursday, walking one batter in a scoreless inning of relief.

The right-hander threw only nine of 20 pitches for strikes but escaped the eighth inning unscathed to protect a 2-2 tie, and Butto became the pitcher of record when the Mets went ahead in the top of the ninth. He's had trouble finding the plate consistently for a couple weeks now, and Butto has walked at least one batter in six straight appearances, posting a 4.32 ERA, 1.92 WHIP and 9:7 K:BB in 8.1 innings over that stretch. Given the injuries in the Mets' bullpen, however, Butto will likely continue to be deployed in high-leverage spots.

Reid-Foley (shoulder) is unlikely to rejoin the Mets before the end of the season, Tim Britton of The Athletic reports.

The right-hander had his rehab assignment paused a couple weeks ago, and he hasn't resumed throwing since. Reid-Foley could eventually be moved to the 60-day IL if the Mets need to open up a spot on the 40-man roster down the stretch. Reid-Foley has thrown only 21.2 innings in the majors this season between various arm issues, posting a 1.66 ERA, 1.25 WHIP and 25:14 K:BB while picking up a win and four holds in 23 appearances.

The Reds optioned Leibrandt to Triple-A Louisville on Friday.

Cincinnati selected Leibrandt's contract from Louisville on Thursday, and he'll return to the affiliate after he delivered 2.1 scoreless frames in his Reds debut. The left-hander is still on the 40-man roster and could rejoin the big club for bullpen depth down the stretch.

Phillips picked up the save over Baltimore on Thursday, striking out two over a scoreless ninth inning.

Phillips hit Cedric Mullins with a pitch to start off the ninth after entering the contest to protect a three-run lead. However, the right-hander was able to retire the next three batters, two by way of strikeout, to secure his 17th save of the campaign. Phillips had blown three of his last five save opportunities, but he carries a sharp 0.79 ERA in August to go along with a highly impressive 20:1 K:BB. He's also recorded multiple strikeouts in three straight appearances.

Martinez (5-5) took the loss Thursday to the Mets, allowing a run on two hits while striking out two over one inning.

Martinez was brought into a 2-2 tie in the ninth inning and was made to pay for Jesse Winker's double. He's allowed runs in three of the last four outings, but Martinez remains the Diamondbacks' primary closer for now.

Blalock (1-1) took the loss Thursday against the Marlins, allowing seven runs (six earned) on nine hits and a walk over four innings. He struck out three.

It was a tough day for Blalock, who allowed a pair of runs in his first three innings before giving up a five-spot in the fourth. The 23-year-old right-hander had gotten off to a nice start before Thursday, pitching to a 3.06 ERA across his first 17.2 big-league innings. Blalock now sports a 4.98 ERA on the season with a 1.62 WHIP and 14:8 K:BB. Should the Rockies elect to keep him in the rotation, Blalock would line up for a road start in Atlanta next week.

Hoffman struck out one in a perfect inning to earn the save in Thursday's 5-4 win over Atlanta.

Both Hoffman and Carlos Estevez had gone two days without pitching, so it's unclear why Hoffman got the save chance in this outing. This was his fourth scoreless outing in a row, and he's allowed three runs over 9.1 innings across his last 11 appearances since a four-run meltdown at Seattle on Aug. 3. Hoffman hadn't logged a save since July 10, and it's unclear if this signals a changing in the bullpen hierarchy or not, though manager Rob Thomson is known to prefer a committee for closing duties. For the year, Hoffman has a 1.92 ERA, 0.98 WHIP and 74:15 K:BB through 56.1 innings while adding 10 saves and 17 holds.

Zulueta was recalled by the Reds on Thursday, Francys Romero of BeisbolFR.com reports.

Zulueta has spent the majority of his season at Triple-A Louisville but will be back to provide depth in the Reds' bullpen. He will be serving as the 27th man in Friday's doubleheader against the Brewers, so it's possible he's sent back down immediately after the twin bill. Across 11.2 innings in the majors, he's maintained a 3.09 ERA and 1.20 WHIP with an 11:5 K:BB.