Diaz (5-1) earned the win Wednesday over the Orioles, striking out a pair in a perfect inning.

Diaz made quick work of the middle of Baltimore's lineup, striking out Anthony Santander and Ryan Mountcastle in a clean top half of the ninth before the Mets walked it off with a Jesse Winker homer in the bottom half of the frame. Diaz has wins in back-to-back appearances -- he's allowed just two runs in his last 11.2 innings while logging 18 strikeouts in that span. The 30-year-old Diaz has converted 14 of 19 save chances this season while posting a 3.41 ERA, 1.03 WHIP and 12.9 K/9 across 37 innings.

The Rockies placed Vodnik on the 15-day injured list Wednesday with right bicep inflammation.

Dating back to the start of July, Vodnik had posted a 3.74 ERA while going 9-for-10 in save chances over 20 appearances to solidify himself as the Rockies' closer, but his shoulder injury now creates an opening at the back end of the bullpen. Tyler Kinley previously converted a save Aug. 1 and would appear to be first in line to step in at closer as a replacement for Vodnik. A clear timeline for Vodnik's return hasn't been established, but the fact that he has been diagnosed with bicep inflammation rather than a strain could make him a candidate to return from the IL once his 15 days are up.

Giants manager Bob Melvin said Wednesday that he expects Doval to be recalled from Triple-A Sacramento sometime during the team's Aug. 23-29 road trip, Alex Pavlovic of NBC Sports Bay Area reports.

What role Doval would fill has not yet been determined, as Ryan Walker has been excellent since taking over the closer role. Since being demoted to Sacramento, Doval has allowed two runs with a 5:1 K:BB over four innings of work. Just one free pass is encouraging to see, as Doval's 13.3 percent walk rate was a major reason why the Giants opted to send him down. When the former closer does rejoin the big-league bullpen, he could work in low-leverage spots initially.

Holmes (2-0) was credited with the win in Tuesday's 3-1 victory over the Phillies, striking out two over two perfect innings of relief.

Bumped back to the bullpen upon the return of Reynaldo Lopez from the injured list, Holmes wound up taking over for Lopez in the sixth inning Tuesday and become the pitcher of record when Atlanta took the lead in the bottom of the frame. Holmes has pitched well in a swingman role in his first MLB campaign, and the 28-year-old righty has a 3.45 ERA, 1.09 WHIP and 49:10 K:BB through his first 47 big-league innings.

Bednar struck out one without allowing a baserunner in a scoreless ninth inning Tuesday against the Rangers.

Bednar allowed at least one earned run in six consecutive outings from July 29 to Aug. 16, and he also blew two saves and took two losses in that span. Nevertheless, he has maintained the closer role and has now turned in consecutive scoreless appearances. If Bednar can remain on track, he should be a decent source of saves the rest of the season.

Hudson got the save in Tuesday's win over the Mariners, allowing a hit over a scoreless inning.

He was staked a three-run lead after Jason Heyward put the Dodgers ahead in the eighth with a home run. Hudson was able to pick up his first save in eight days and posted just his second scoreless outing over his last six appearances. Michael Kopech and Evan Phillips have also picked up saves over the past week, signifying that the Dodgers' closer role is still more of a committee. Hudson owns a 2.61 ERA, 0.93 WHIP and 50:12 K:BB in 51.2 innings to go along with 10 saves, 16 holds and six wins.

Williams gave up two hits and a walk in a scoreless ninth inning Tuesday to record his fifth save of the season in a 3-2 win over the Cardinals. He struck out three.

He converted his fifth straight save chance since recovering from back trouble and making his season debut in late July, but Williams wasn't exactly sharp. The right-hander loaded the bases with one out before fanning Paul Goldschmidt and Nolan Gorman to escape the jam. Williams has seen a heavy workload over the last week, getting called upon four times in seven days, so it wouldn't be a surprise if Trevor Megill handled the ninth Wednesday should Milwaukee have another late lead to protect.

Kinley allowed one hit and struck out one in a scoreless eighth inning to earn a hold Tuesday against the Nationals.

Kinley entered the game with a 3-1 lead and continued his solid run since the All-Star break. In 16 games -- spanning 16.2 frames -- he's maintained a 1.62 ERA and 0.78 WHIP to go along with an 18:5 K:BB. Notably, Victor Vodnik (shoulder) was unavailable Tuesday night, and Kinley would likely be next in line for save chances should Vodnik remain sidelined.

Vodnik experienced shoulder soreness while warming up to enter Tuesday's game against the Nationals, MLB.com reports.

Vodnik was preparing to enter the game in the ninth inning with the Rockies leading 3-1 but could not pitch. After the game, manager Bud Black termed the decision as cautious and referenced Vodnik's recent workload. Angel Chivilli entered the game and earned his first career save, though Tyler Kinley had already pitched the eighth inning and would likely be the top choice for save chances if Vodnik is forced to miss additional time.

Nunez (forearm) began a rehab assignment with Triple-A Syracuse on Tuesday, striking out a batter and allowing a hit over a scoreless inning.

Nunez has resided on the 15-day injured list for nearly a month with a pronator strain in his right forearm, so he'll likely require another minor-league appearance or two before the Mets activate him. The right-hander has posted a 2.43 ERA and 0.93 WHIP while striking out 45 batters and issuing just eight walks over 33.1 innings out of the New York bullpen this season.