Schultz was placed on the minor-league injured list with knee discomfort Thursday, Scott Merkin of MLB.com reports.

Merkin reports that the White Sox are taking a cautious approach with Schultz, who had only recently returned from a knee injury. Schultz may not retake the mound for the rest of the minor-league season, but he is expected to participate in the Arizona Fall League.

Suarez (11-6) picked up the win Thursday against the Brewers, allowing six hits and two walks in six scoreless innings. He struck out four.

Suarez has now given up one run or zero while throwing at least five innings in three straight starts. The left-hander has also logged a quality start in three of his last four outings, and he's worked at least five frames in eight consecutive appearances as well. Suarez boasts a 2.89 ERA, 1.18 WHIP and 128:32 K:BB over his 137 innings, and he's next in line for a stiff assignment against a Mets team with an .845 OPS versus left-handed pitching since the beginning of August.

Peralta didn't factor into the decision Thursday against the Phillies, allowing two hits and three walks in five scoreless innings. He struck out eight.

Peralta has been on an absolute tear on the mound, having now turned in five consecutive starts of at least five shutout innings. That hot stretch has amounted to a scoreless streak of 28 frames, and he's yielded a lone run across 33 innings since the beginning of August. The All-Star right-hander now sports a 2.50 ERA, 1.07 WHIP and 176:61 K:BB through 158.2 frames overall, and he'll be aiming to extend his scoreless streak in a scheduled matchup against the Rangers next week.

The Royals recalled Kolek from Triple-A Omaha on Thursday.

The 28-year-old pitched six innings of one-run ball during his Royals debut last Saturday against the Tigers, and he'll now return to Kansas City to replace the injured Seth Lugo (back) in the rotation. Kolek is penciled in to make his next start Saturday against a Twins offense that has posted a .727 OPS over its last 15 games.

Astros manager Joe Espada said they are still waiting on Arrighetti's (elbow) MRI results Thursday, but that a return during the regular season is unlikely, Matt Kawahara of the Houston Chronicle reports.

Arrighetti was placed on the 15-day injured list Wednesday due to right elbow inflammation. He's without a clear timeline for his return but isn't likely to be back with the Astros in the final weeks of the regular season.

The Royals placed Lugo on the 15-day injured list Thursday with a lower-back strain, Anne Rogers of MLB.com reports.

The Royals originally planned to push Lugo's next start back to Saturday after he reported tightness in his lower back. However, he didn't feel any improvement while playing catch Thursday and will now spend the next couple of weeks on the shelf in order to get back to 100 percent. Stephen Kolek was recalled from Triple-A Omaha in a corresponding move and is expected to start Saturday's game against the Twins.

The White Sox recalled Cannon from Triple-A Charlotte on Thursday.

Cannon is scheduled to serve as the bulk reliever in Thursday's game against the Twins. The right-hander has made 17 starts and two relief appearances for Chicago this season, posting a 5.34 ERA and 76:35 K:BB over 96 innings.

Atlanta released Quantrill on Thursday.

Quantrill was rocked for 12 runs over eight innings in two appearances after Atlanta claimed him off waivers. He's now free to sign elsewhere and might have to settle for a minor-league contract.

The Mets will call up Sproat from Triple-A Syracuse to make his major-league debut Sunday with a start in Cincinnati, Michael Mayer of MetsmerizedOnline.com reports.

The youth movement in the Mets' rotation is in full effect, as Sproat will join fellow rookies Nolan McLean and Jonah Tong. Sproat got off to a poor start at Syracuse this season but has posted a 2.44 ERA and 70:21 K:BB over 59 innings covering his last 11 outings and struck out nine across seven shutout frames in his most recent start. The 24-year-old isn't necessarily guaranteed any starts beyond Sunday, but with Kodai Senga, Sean Manaea and Clay Holmes all struggling, Sproat will have an opportunity to stick around if he performs.

Ragans (shoulder) threw a 30-pitch live batting practice session Wednesday, MLB.com reports.

Ragans' recovery from a torn left rotator cuff has been slow and deliberate, with Wednesday marking his first time facing live hitters since he was placed on the injured list June 11. While no firm timeline has been set for Ragans' return, the next step for the 27-year-old would likely be heading out on a rehab assignment to build up his pitch count with the hope of rejoining the big club in the second half of September.