The Baltimore Orioles have promoted top infield prospect Gunnar Henderson to the majors as they continue their push for a postseason spot.

The Orioles selected Henderson's contract Wednesday from Triple-A Norfolk amid a series of moves before their game against the Cleveland Guardians. Baltimore also signed Jesus Aguilar to a minor league deal and added the veteran first baseman to the taxi squad.

The Tampa Bay Rays scratched Shane McClanahan from his scheduled start against the Miami Marlins Tuesday because of left shoulder impingement.

McClanahan, 25, was named an All-Star last month and has a 2.20 ERA over 24 starts. He will undergo further testing on Wednesday.

"Going into the game, something just didn't feel right," McClanahan said. "Just couldn't get loose. Can't put a finger on it."

Fernando Tatis, Jr. had to postpone a scheduled left shoulder surgery because he has strep throat.

The San Diego Padres shortstop was slated to have the labrum in his left shoulder repaired on Tuesday, but that procedure now will be delayed a week or so while he recovers from the illness.

The delay is not expected to affect Tatis' return next season after he's done serving an 80-game suspension for testing positive for a performance-enhancing drug.

Jameson Taillon was pulled from the New York Yankees' win against the Los Angeles Angels on Tuesday after only two innings, after being hit by a 91 mph liner off the bat of Magneuris Sierra.

The club later announced Taillon had a right forearm contusion and that X-rays for a possible fracture were negative.

"X-ray's negative, obviously; feeling better already. Started trying to get the swelling out of there," Aaron Boone said. "Obviously, [the ball] got him good. We'll just have to see how the next couple of days unfold."

White Sox manager Tony La Russa missed Tuesday night's game against the Kansas City Royals with an unspecified medical issue.

The team said the 77-year-old manager would skip the game on the recommendation of his doctors and would undergo further testing Wednesday.

Major League Baseball Players Association executive director Tony Clark is confident that at least 30% of minor league players will sign recently distributed union authorization cards in the coming days and weeks, paving the way for thousands more players to potentially join the organization.

"There was tremendous response," Clark told the AP on Tuesday. "That's probably not surprising."

Los Angeles Dodgers left-hander Clayton Kershaw, who has not pitched since Aug. 4 due to lower back pain, will start against the New York Mets on Thursday, manager Dave Roberts said Tuesday.

Kershaw, 34, threw a simulated game earlier this week. This is the second time this season that he's been on the injured list due to an injured back, with the previous stint having affected his right side.

The Arizona Diamondbacks plan to bring back manager Torey Lovullo next season, exercising the club option on his contract for 2023, it was announced Tuesday.

The move comes one day after the biggest comeback win in franchise history: Arizona was trailing 7-0 in the fourth inning against the Phillies before rallying for a 13-7 victory.

The Houston Astros have placed starting pitcher Justin Verlander on the 15-day IL with a right calf injury, the team announced Tuesday.

Verlander left his start on Sunday against Baltimore after three innings and 60 pitches, with the team later announcing the injury.

The Minnesota Twins don't expect Kenta Maeda to return from the injured list during the regular season.

Maeda underwent an internal brace Tommy John surgery last September. He hasn't suffered any type of setback, but the Twins are simply running out of time to get him back on the mound in 2022.

Maeda has been throwing bullpen sessions but hasn't yet started out on a minor league rehab assignment.