Westburg (hand) is expected to begin a rehab assignment with Triple-A Norfolk on Thursday, Rich Dubroff of BaltimoreBaseball.com reports.

Westburg has been on the shelf since Aug. 1 with a fractured right hand, but after taking batting practice Tuesday without issue, he appears to have cleared the final hurdle before being ready for game action. Given his long layoff, Westburg may require at least a couple of games in the minors to regain his timing at the plate, but he should make it back from the 10-day injured list before the Orioles' regular season comes to a close Sept. 29. Westburg and Ramon Urias (ankle) are seemingly tracking toward similar return timelines from the IL, and the Orioles could have regular roles available for both players in the infield once they're activated.

Rivera will start at third base and bat seventh in Wednesday's game against the Giants.

Rivera has produced a .754 OPS thus far in September and will be rewarded with a sixth consecutive start at third base while he remains one of the Orioles' more productive bats of late. Though top prospect Coby Mayo hasn't presented much of a threat to his playing time, Rivera could be more at risk of losing at-bats once Ramon Urias (ankle) returns from the injured list. Urias is expected to report to Triple-A Norfolk on Thursday to begin a rehab assignment.

Lewis is out of the lineup for Wednesday's game against the Guardians.

Lewis will get some rest after he had started at third base in each of the past six games while going 6-for-22 with two doubles, two walks, two RBI and two runs. Jose Miranda will spell Lewis at the hot corner Wednesday.

Urias (ankle) will begin a rehab assignment with Triple-A Norfolk on Thursday, Steve Melewski of MASNSports.com reports.

The Orioles haven't indicated how many rehab games he will require, but Urias is nearing a return from the 10-day injured list after being out since late August with a sprained right ankle. Urias and Jordan Westburg (hand) look to be tracking toward returns around the same time, and the latter should be the priority for playing time at third base.

The Giants officially placed Chapman (personal) on the paternity list Wednesday.

Chapman left the team prior to Tuesday's 10-0 win over the Orioles to observe the birth of his child, but the Giants waited until Wednesday before officially deactivating him. Casey Schmitt was recalled from Triple-A Sacramento to provide some infield depth in the short term. Per MLB rules, Chapman will be away from the Giants for at least one game and as many as three while on the paternity list, so expected him to rejoin the club no later than Saturday.

Muncy went 3-for-5 with two doubles, five RBI and a stolen base in a loss to the Marlins on Tuesday.

Muncy plated over half of Los Angeles' runs in the high-scoring affair, knocking a two-run double in the third inning, a run-scoring single in the seventh and another two-run double in the ninth. The third baseman has driven in at least one run in six of his past nine contests and has a total of 10 RBI during that span. Since returning from the injured list Aug. 19, Muncy is slashing .250/.382/.583 with six home runs, 17 RBI, 16 runs, a stolen base and a 14:22 BB:K over 24 games.

Ramos is out of the lineup for Wednesday's game against the Angels.

Ramos is on the bench for a second straight matchup with a right-handed pitcher (Jack Kochanowicz) and may have lost hold of the primary gig at third base. Yoan Moncada (adductor) hasn't been a factor at the hot corner since being activated from the 60-day injured list Monday, but Miguel Vargas will occupy the position for the third day in a row.

McMahon is not in the lineup for Wednesday's game against the Diamondbacks.

The Diamondbacks are sending southpaw Eduardo Rodriguez to the hill in the matinee, so the left-handed-hitting McMahon will begin the game on the bench. Aaron Schunk is at third base and batting ninth for the Rockies.

Caminero went 2-for-4 with a solo home run and a double Tuesday against the Red Sox.

Caminero homered for the first time since Aug. 31, a span of 15 games. He hit only .241 across 58 at-bats in that time to go along with four doubles and a .623 OPS. Positively, Caminero has hit primarily third in the lineup and remains an everyday player for the Rays.

Machado went 2-for-5 with a two-run homer in Tuesday's loss to the Astros.

After getting shut out by Hunter Brown for five innings, Machado finally got the Padres on the board with a two-run homer to level the game in the sixth. He now has four homers, seven multi-hit performances and 16 RBI over his last 10 games. Machado started off slow this year with six homers and 33 RBI in the first 70 games, and over his last 73 games he's turned things around with 21 homers and 69 RBI while hitting for a .305 average.