The Orioles transferred Mateo (elbow) from the 10-day injured list to the 60-day IL on Tuesday, Rich Dubroff of BaltimoreBaseball.com reports.

Mateo was placed on the 10-day injured list Thursday with a left elbow subluxation and he will now be forced to miss two months of action while recovering. He'll be eligible to return from the IL in late September if he's able to avoid any setbacks. With Mateo unavailable, top prospect Jackson Holliday is set to be called up from Triple-A Norfolk to join the major-league roster in Baltimore on Wednesday ahead of the team's series finale with the Blue Jays. Holliday will likely take over as the Orioles' primary second baseman.

The Royals optioned Loftin to Triple-A Omaha on Tuesday.

The 25-year-old will lose his place on the big-league roster after the Royals acquired Paul DeJong from the White Sox on Tuesday. Loftin has a .199/.294/.248 slash line with one homer in 55 MLB games this season.

The Angels recalled Stefanic from Triple-A Salt Lake on Tuesday.

He's taking the roster spot of the injured Anthony Rendon (back). Stefanic could see some action in the infield, especially if the Angels wind up trading Luis Rengifo.

Polanco (knee) started at second base and went 0-for-2 with an RBI sacrifice fly in a loss to the Red Sox on Monday.

Polanco was replaced defensively by Leo Rivas to start the sixth inning, but the veteran infielder seemed to tolerate his time in the game well after exiting Sunday's win over the White Sox with a knee injury. Polanco did see a four-game hitting streak snapped, but the RBI he mustered on his sac fly was his sixth in the last four contests.

The Red Sox are considering optioning Grissom (hamstring) to Triple-A Worcester following the conclusion of his minor-league rehab assignment, Jen McCaffrey of The Athletic reports.

Grissom has to be reinstated from the 10-day injured list by Aug. 9, but the Red Sox may be inclined to leave him at Worcester at that time rather than clearing a spot for him on the 26-man active roster. The 23-year-old has slashed a woeful .148/.207/.160 in 23 contests with the Red Sox this season and is hitting just .231/.333/.269 so far in seven rehab games with Worcester.

Semien batted third and went 1-for-5 with a run scored in Monday's 6-3 win over the Cardinals.

Texas manager Bruce Bochy tweaked the batting order, having Semien hit third for the first time this season. Josh Smith, who had been batting third, took over as the leadoff hitter. Bochy told Kennedi Landry of MLB.com that the change was part of integrating Josh Jung into the lineup. "We're just tweaking it a little bit here," the manager said. "With Jung coming back, you're gonna see a little different lineup. So we wanted to take a look at it here in this series and maybe farther." It's unclear if the switch was for only right-handers or all pitchers. Jung, who was activated off the 60-day injured list Monday, did not play in that night's game, so more changes could be coming once Jung returns to the field.

The Blue Jays acquired Wagner, right-hander Jake Bloss and outfielder Joey Loperfido from the Astros on Monday in exchange for left-hander Yusei Kikuchi, Ben Nicholson-Smith of Sportsnet.ca reports.

The clear No. 3 piece in the return for Toronto, Wagner turned 26 years old Sunday and hasn't yet made his big-league debut. The son of esteemed former MLB closer Billy Wagner, Will is slashing .307/.424/.429 with five home runs and has more walks (54) than strikeouts (33) in 70 games for Triple-A Sugar Land. This season, Wagner has started 33 games at first base, 20 games at second base and eight games at third base. He will need to be added to the 40-man roster this offseason in order to be protected from the Rule 5 Draft.

Frazier is out of the lineup for Monday's game against the White Sox.

Frazier finds himself on the bench for the third game in a row and for the second time against a right-hander (Chris Flexen). With Frazier getting on base at just a .167 clip since the All-Star break, his brief run as the Royals' everyday leadoff hitter looks to be over.

Polanco (knee) will start at second base and bat cleanup in Monday's game against the Red Sox.

Polanco was lifted late in Sunday's 6-3 win over the White Sox with knee pain, but he apparently won't require a day out of the lineup -- or even a day out of the field -- to shake off the injury. The Mariners will hope that the knee issue won't disrupt Polanco's timing at the plate, as he's been one of the club's most productive hitters thus far in the second. Over his nine games since the All-Star break, Polanco is slashing .286/.342/.686 with four home runs and a stolen base.

The Rangers optioned Foscue to Triple-A Round Rock on Monday.

Foscue had already been withheld from the lineup in each of the Rangers' last four matchups against right-handed pitching, and his outlook for playing time was only going to worsen with Josh Jung (wrist) returning from the 60-day injured list Monday. As a result, Texas will send the 25-year-old back to Triple-A to receive everyday at-bats. Foscue struggled to produce at the plate during his week-long stint with the big club, going 1-for-17 with a double and seven strikeouts over his five starts as Texas' designated hitter.