The Athletics reinstated Noda (jaw) from the 10-day injured list Monday.

Noda will rejoin the big club after he recently completed a four-game rehab stint with Triple-A Las Vegas, during which he went 4-for-10 with two home runs and two doubles. Before fracturing his jaw in mid-July, Noda had been one of the Athletics' more productive hitters, and he should immediately reclaim a near-everyday spot in the lineup against right-handed pitching. The Athletics demoted Tyler Soderstrom to Triple-A in a corresponding move.

Singleton is out of the lineup for Monday's game against the Red Sox.

Since his big two-homer, five-RBI effort in a 11-3 win over the Angels on Aug. 11, Singleton has fallen into a 1-for-25 rut at the plate over his subsequent eight contests. Though Jose Abreu (back) remains on the injured list and without a clear timeline for a return, Singleton's ongoing slump may have cost him his role as the Astros' primary first baseman. Singleton will hit the bench for the second time in three games while the hot-hitting Yainer Diaz picks up another start at first base at his expense.

Vaughn is not in the lineup for Monday's game against the Mariners.

Vaughn went 3-for-5 with a homer in Sunday's contest, but manager Pedro Grifol decided it was time for a day off. Gavin Sheets will get the nod at first base Monday night.

Casas (tooth) will start at first base and bat cleanup in Monday's game against the Astros, Jen McCaffrey of The Athletic reports.

Casas missed a pair of games with a tooth infection, but he was examined earlier Monday and was deemed ready to return to action. He'll occupy his usual spot at first base and look to continue his big post-All-Star break run. Through 32 second-half contests, Casas is maintaining a .323 average to go with 11 home runs, 21 RBI and 20 runs.

Noda (jaw) started in right field and played seven innings in Triple-A Las Vegas' loss to Reno on Saturday, going 2-for-3 with a solo home run, a two-run homer, a walk and an additional run.

Noda was able to play defense for the second consecutive night and looked to be no worse for wear while slugging a pair of round-trippers. The 27-year-old has gone 4-for-10 with two doubles, the pair of homers, five RBI, eight walks and seven runs across four rehab games with the Aviators, supporting the notion he's ready to be activated at any time.

Mountcastle went 3-for-5 with a three-run home run and an additional run scored in Sunday's 12-1 win over the Athletics.

Mountcastle has hit safely in 17 of 18 games in August, batting .403 (27-for-67) with four homers, 14 RBI and 14 runs scored this month. His blast in the fourth inning put the Orioles ahead 7-0. The first baseman is up to 17 homers, 60 RBI, 55 runs scored, three stolen bases and a .275/.321/.481 slash line through 93 contests overall. With his recent hitting, he's played his way back into widespread fantasy relevance.

Torkelson went 1-for-4 with a two-run home run in Sunday's win over the Guardians.

Following a walk by Matt Vierling to begin the top of the first, Torkelson sent an 0-1 pitch over the wall in right for an opposite-field homer. The two-run blast was his fifth in eight games and seventh this month, though his previous six August home runs were all solo shots. The batting average is still a subpar .233, but Torkelson's power surge is beginning to provide the Tigers with the type of production they expected when they made him the first overall selection in the 2020 draft.

Vaughn went 3-for-5 with a solo home run and an additional run scored in Sunday's 10-5 win over the Rockies.

Vaughn opened the scoring with his second-inning blast. He'd gone nine games without a homer entering Sunday, batting a mediocre .206 with no extra-base hits over that span. For the season, he's slashing .253/.317/.430 with 16 homers, 63 RBI, 52 runs scored, 24 doubles and two triples over 115 contests.

O'Hearn is out of the lineup for Sunday's game against the Athletics.

The lefty-hitting O'Hearn will once again hit the bench while the Orioles face a left-handed starting pitcher (JP Sears) for the fourth time in as many days. With O'Hearn taking a seat, Gunnar Henderson will get a day out of the field and serve as the Orioles' designated hitter while Ryan Mountcastle picks up a start at first base.

Guerrero was removed ahead of the bottom of the fourth inning of Sunday's game against the Reds due to left middle finger discomfort. He went 1-for-2 with a walk and a run scored prior to his departure.

Guerrero's injury may not be a major concern, as the Blue Jays took a 9-2 lead into the bottom of the fourth and might have chosen to pull the first baseman from the contest early as a matter of precaution. The Blue Jays are off Monday, so Guerrero will get some extra time to heal up from the finger injury before the team opens a crucial three-game series in Baltimore on Tuesday.