Semien went 2-for-5 with a home run, five RBI, a stolen base and a walk in Monday's victory against the Angels.

Semien posted a terrific line, including a three-run shot in the seventh inning. The veteran infielder is heating up again; he's gone 26-for-75 (.347) with eight extra-base hits and an 11:10 BB:K over his last 19 games. For the season, Semien is now slashing .283/.354/.470 with 11 steals, 19 home runs and 77 RBI through 119 games.

Albies (hamstring) is being placed on the 10-day injured list, David O'Brien of The Athletic reports.

Albies was held out of Monday's matchup against the Yankees due to a left hamstring injury, and Atlanta has made the decision to move him to the injured list while he recovers. Nicky Lopez could see a good chunk of the opportunities at second base in the meantime, though Vaughn Grissom is also an option, per Mark Bowman of MLB.com. The team has yet to announce a corresponding move.

Altuve went 3-for-4 with a double, an RBI and a steal in Monday's 5-1 loss to the Marlins.

After his 14-game hitting streak ended Sunday, Altuve bounced back with a three-hit effort in Monday's series opener with the Marlins, his fifth multi-hit game in his last six contests. Since returning from the IL on July 26, Altuve's gone 29-for-68 (.426) with nine extra-base hits and seven stolen bases in 17 games. Overall, the 33-year-old second baseman's slashing an outstanding .323/.422/.545 with nine homers, 43 runs scored and 28 RBI across 223 plate appearances this season while going 12-for-14 in stolen base attempts.

Lowe isn't in the starting lineup for Monday's game against the Giants, Sonja Chen of MLB.com reports.

Lowe is in store for a night off as the Giants are expected to roll out lefty Sean Manaea following Monday's opener, Ryan Walker. The Rays will shift Isaac Paredes to second base, paving the way for Curtis Mead to draw the start at the hot corner in Lowe's absence.

Motter was added to the lineup for Monday's game against the A's

Motter was set to work as a reserve Monday, but he will join the starting nine in place of Nolan Gorman, who was scratched with tightness in his lower back. Motter will cover the keystone and hit ninth in Monday's batting order.

Gorman was scratched from the lineup Monday against the Athletics due to lower-back tightness, Katie Woo of The Athletic reports.

This back tightness has been a lingering issue for Gorman, who may need more days off down the stretch. Taylor Motter will start at second base and bat ninth as the Cardinals open a three-game series versus Oakland.

The Giants optioned Mathias to Triple-A Sacramento on Monday, Alex Pavlovic of NBC Sports Bay Area reports.

Mathias went 2-for-10 with four strikeouts during his eight-day stay on San Francisco's major-league roster. Johan Camargo will fill his spot ahead of Monday's series opener against the Rays.

Frazier is not in the lineup for Monday's game against the Padres.

Frazier started five straight games after missing a few days with a thumb issue, but he racked up only three hits in 16 at-bats over that span, so manager Brandon Hyde decided to hold him out Monday. Jordan Westburg will cover the keystone in Frazier's place.

Atlanta manager Brian Snitker said Monday that Albies is undergoing more testing on his left hamstring, Mark Bowman of MLB.com reports.

Albies was originally diagnosed with a mild hamstring cramp following his departure from Sunday's series finale against the Mets, but he is still feeling sore a day later and is not in the lineup for Monday's series opener versus the Yankees. Nicky Lopez will get the start at second base as Albies is further evaluated.

Kemp (personal) was activated from the paternity list Monday.

Kemp missed all of Oakland's weekend series against the Nationals following the birth of his child, but he has rejoined both the club and the roster and will be available moving forward.