The Mariners recalled Kowar from Triple-A Tacoma on Friday.

Kowar was optioned to Triple-A on Wednesday, but he'll turn around and head back to Seattle to replace the injured Trent Thornton (Achilles). Kowar will likely take on a middle-relief role with the Mariners after posting a 1.54 ERA and 0.86 WHIP through 11.2 innings with the big club this season.

The Giants selected Teng's contract from Triple-A Sacramento on Friday.

Teng has appeared in 25 games (four starts) at Triple-A this season and has posted a 3.67 ERA, 1.11 WHIP and 86:21 K:BB across 54 innings. Though he's mostly worked in relief at Sacramento, four of his last five outings have come as a starter, with Teng covering five-plus innings in three of those appearances. With Landen Roupp (elbow) on the 15-day injured list, Teng could be a candidate to enter the Giants rotation as soon as Saturday against the Mets.

The Pirates reinstated Borucki (back) from the 15-day injured list Friday.

Borucki landed on the IL in mid-June due to a lower-back injury. He was cleared to resume throwing in early July, and in seven rehab outings he allowed one run on two hits and four walks while striking out 10 across 7.1 innings. Borucki posted a 5.26 ERA, 1.25 WHIP, three saves and a 22:11 K:BB across 25.2 innings prior to his injury.

The Pirates recalled Nicolas from Triple-A Indianapolis on Friday.

Nicolas will rejoin the Pirates' bullpen after the team shipped Taylor Rogers and David Bednar elsewhere prior to Thursday's trade deadline. Nicolas has coughed up 10 earned runs over 12 innings in the majors and will likely work in low-leverage spots while in Pittsburgh.

The Padres optioned Marinaccio to Triple-A El Paso on Friday.

The Padres had to clear room on their active roster following their shopping spree ahead of Thursday's trade deadline, and Marinaccio will end up as one of the casualties. The 30-year-old righty threw 2.2 shutout innings while striking out four batters during his brief stint in the majors, and he could still be an option to return to San Diego if/when the Padres need a fresh bullpen arm down the stretch.

Waddell (hip) is expected to begin a rehab assignment with Double-A Binghamton on Saturday.

The Mets optioned Waddell shortly after the All-Star break, only to reverse that move and place him on the 15-day injured list with a right hip impingement. He's now ready for game action and doesn't figure to require a lengthy rehab assignment, but it's uncertain what kind of role he will have over the final two months of the regular season (if any). New York bolstered its bullpen with Ryan Helsley, Tyler Rogers and Gregory Soto prior to Thursday's trade deadline.

Boyle is slated to start Sunday's game against the Dodgers in Tampa.

After Tampa Bay optioned right-hander Taj Bradley to Triple-A Durham last week, Boyle stepped into the open spot in the rotation and made his second start of the season for the big club in Tuesday's loss to the Yankees. Despite being roughed up from six runs (four earned) on four hits and three walks over 3.1 frames, Boyle still owns sparkling ratios (2.82 ERA, 0.85 WHIP, 24:9 K:BB in 22.1 innings) at the big-league level this season and appears to have gained some security in the Tampa Bay rotation in the aftermath of Thursday's trade deadline. The Rays acquired right-hander Adrian Houser but shipped out two other starters in Bradley (Twins) and righty Zack Littell (Reds).

Palencia gave up a hit in a scoreless ninth inning Friday to record his 15th save of the season in a 1-0 win over the Orioles.

The right-hander needed only nine pitches (six strikes) to get the job done, but he came close to blowing the save, as a two-out double by Adley Rutschman was followed by a deep fly from Tyler O'Neill that backed Ian Happ up to the ivy at Wrigley Field for the final out. Palencia hasn't given up an earned run since June 21, posting a 0.00 ERA, 0.60 WHIP and 12:1 K:BB in 11.2 innings over his last 12 appearances while converting eight save chances.

DeSclafani will start Friday's game against the Athletics, Alex Weiner of ArizonaSports.com reports.

DeSclafani has pitched well for Arizona since signing with the team in mid-June, posting a 3.86 ERA, 1.07 WHIP and 24:6 K:BB in 23.1 innings, and he will be rewarded with his second start of the campaign in Friday's series opener. He could end up sticking in the rotation after the Diamondbacks traded Merrill Kelly to Texas on Thursday. DeSclafani has a long injury history, most recently battling a flexor tendon injury that cost him all of 2024.

The Athletics recalled Nunez from Triple-A Las Vegas on Friday.

Nunez was acquired from the Padres on Thursday in the Mason Miller and JP Sears trade. Nunez made his MLB debut earlier this season with San Diego, registering a 3.86 ERA, 1.71 WHIP and 2:4 K:BB across 4.2 innings. He struck out 14.4 batters per nine innings over 35 frames in the minors.