Tatis (hamstring) will not return during the upcoming road trip, which runs through May 29, Dennis Lin of The Athletic reports.
Josh Hader didn't allow a baserunner and recorded two strikeouts in 1.2 innings to record his 12th save of the season during an 11-9 victory against the Reds on Wednesday.
DJ Stewart, who has a 143 wRC+ at Triple-A, is currently blocked at the big-league level, but the Orioles hope to figure out a way to make room for him sooner than later, Nathan Ruiz of The Baltimore Sun reports. "It's just hard to find an easy way to get him here, but we would love to have him join this team," general manager Mike Elias said Wednesday. "I'm hopeful we can figure out a way to do that on the sooner side."
Kirby Yates bagged another save against the Diamondbacks on Wednesday, retiring all three batters he faced in a scoreless ninth inning to preserve a 5-2 victory for the Padres. He struck out one.
Luis Castillo allowed four runs on five hits with two strikeouts and three walks across 2.2 innings during a no-decision against the Brewers on Wednesday.
Manager Gabe Kapler said Wednesday that Vince Velasquez (forearm) could be moved to the bullpen when he comes off the injured list, Matt Breen of The Philadelphia Inquirer reports.
Zach Davies allowed six runs on six hits with two strikeouts and one walk across three innings during a no-decision against the Reds on Wednesday.
Dan Jennings has elected free agency, Brittany Ghiroli of The Athletic reports.
Andrelton Simmons (Grade 3 ankle sprain) will not require surgery, J.P. Hoornstra of the Los Angeles Daily News reports.
Pedro Baez (knee) could return Friday in Pittsburgh, David Vassegh of AM 570 LA Sports reports.
Ariel Jurado pitched an inning of relief in Wednesday's 2-1 win over Seattle. He allowed a hit and a walk while striking out two.
Scott Oberg, not Carlos Estevez, will be the Rockies' primary closer while Wade Davis (oblique) is on the injured list, Nick Groke of The Athletic reports.
Pedro Strop (hamstring) could begin a minor-league rehab assignment next week, Gordon Wittenmyer of the Chicago Sun-Times reports.
Luis Severino (lat) could resume playing catch Monday, Bryan Hoch of MLB.com reports.
Shawn Kelley earned his fourth save Wednesday, giving up a hit and a walk while striking out two over one inning in a 2-1 win over the Mariners.
Rajai Davis' contract was purchased from Triple-A Syracuse on Wednesday, Mike Mazzeo of Yahoo Sports reports.
Adrian Sampson (2-3) allowed one run on four hits while striking out five over 5.1 innings in Wednesday's 2-1 win over the Mariners.
Kyle McGowin has been confirmed as Friday's starter against the Marlins, Jesse Dougherty of The Washington Post reports.
Ryan Weber will start Thursday's game in Toronto, Pete Abraham of The Boston Globe reports.
Kenta Maeda (thigh) will come off the injured list to start Sunday's game in Pittsburgh, Pedro Moura of The Athletic reports.