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.

Hess has a 3.16 ERA, 0.97 WHIP and 32:10 K:BB in 25.2 innings across five starts for Double-A Somerset.

The Yankees selected Hess with the 26th pick in the 2024 First-Year Player Draft and he has logged 20 starts and 92.1 innings thus far in his first pro season. Hess, who was promoted from High-A Hudson Valley to Double-A on Aug. 5, has a strong 33.2 percent strikeout rate on the year, but his 11.3 percent walk rate is a tad high. Hess has a couple plus pitches in his mid-90s fastball and mid-70s curveball while his slider and changeup lag behind. He should spend the bulk of 2026 at Triple-A, but a summer promotion to the big leagues is in play if Hess picks up where he left off this season.

Sproat is in "strong consideration" to receive a call-up from Triple-A Syracuse to make a start with the Mets, Andy Martino of SNY.tv reports.

Sproat has had an up-and-down season with Triple-A Syracuse and has been bypassed by Nolan McLean and Jonah Tong for promotions. However, he's collected 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 appearance Saturday. It's not clear exactly where Sproat might slot into the Mets rotation, but Kodai Senga's rotation spot is on thin ice, and Sean Manaea has also struggled lately.

Snelling allowed one run on seven hits over seven innings for Triple-A Jacksonville on Wednesday, striking out a career-high 13 without walking a batter.

The lack of a spot on the 40-man roster seems to be the only thing keeping Snelling from making his major-league debut in 2025. The 21-year-old southpaw has delivered seven straight quality starts at Triple-A, fanning double-digit batters three times during that stretch while producing a 1.24 ERA, 0.89 WHIP and 62:9 K:BB through 43.2 innings. The Marlins have so far declined to promote Snelling despite having six starting pitchers on the IL at the moment, but despite the team's apparent desire to delay starting his service-time clock, he clearly has nothing left to learn in the International League.