Apostel has appeared in three games for Triple-A Round Rock since returning from a knee injury, going 3-for-12 with a solo home run, a double and a walk in those contests.

Apostel (knee) was outrighted to Triple-A Round Rock on Thursday, Kennedi Landry of MLB.com reports.

The Rangers designated Apostel (knee) for assignment Thursday.

The Rangers optioned Apostel (knee) to Triple-A Round Rock on Monday.

Apostel will miss the remainder of the season after undergoing surgery to address an issue with his knee cartilage, independent baseball journalist Jeff Wilson reports.

Apostel was promoted to Triple-A Round Rock from Double-A Frisco on Monday.

Apostel (undisclosed) has gone 1-for-11 over three games with Double-A Frisco since the affiliate reinstated him from its 7-day injured list July 28.

Apostel, who was placed on Double-A Frisco's 7-day injured list July 6 with an unspecified injury, began a rehab assignment with the Rangers' rookie-level Arizona Complex League affiliate last week. Through four ACL games, Apostel has gone 5-for-12 with three home runs, three walks, six runs and eight RBI.

Double-A Frisco placed Apostel on the 7-day injured list Tuesday with what is believed to be a leg cramp or strain, Adam J. Morris of LoneStarBall.com reports.

Apostel will start the season at Double-A Frisco, Sam Blum of the Dallas Morning News reports.

Apostel was optioned to Triple-A Round Rock on Friday, Jeff Wilson of the Fort Worth Star-Telegram reports.

Apostel (back) has made three appearances for the Rangers in Cactus League play, going 1-for-3 at the plate across those contests.

Apostel was placed on the 10-day injured list Sunday with lower-back tightness.

Rangers manager Chris Woodward said Apostel (back) is unlikely to play again this season, Sam Blum of the Dallas Morning News reports.

Apostel exited Thursday's game against the Astros after tweaking his back while diving for a ground ball, Levi Weaver of The Athletic reports.

Apostel started at first base and went 0-for-4 while committing a costly error in Saturday's 4-3 loss to the Angels.

Apostel started at first base and went 1-for-4 with a double and a run scored in Thursday's 2-1 loss to the Astros.

Apostel was called up from the alternate training site and will start at third base in Game 2 of Saturday's doubleheader versus the Athletics, Levi Weaver of The Athletic reports.

Apostel made his summer camp debut Thursday after being delayed while waiting on results of intake testing, T.R. Sullivan of MLB.com reports.

Apostel was optioned to Double-A Frisco on Wednesday.

Apostel was added to the Rangers' 40-man roster Wednesday, T.R. Sullivan of MLB.com reports.

Apostel was traded to the Rangers from the Pirates as the player to be named later in the Keone Kela trade, Jeff Wilson of the Fort Worth Star-Telegram reports.