Lux got a late start on the 2017 season as he dealt with a rib issue in spring training.[13] He was assigned to the Single-A
Great Lakes Loons of the
Midwest League on April 19.[14] He played in 101 games for the Loons, hitting .244/.331/.362 with seven home runs, 39 RBIs, and 27 stolen bases.[12]
He was promoted to the
Rancho Cucamonga Quakes of the
California League for the 2018 season[15] and was selected to the mid-season all-star game.[16] He was promoted to the
Tulsa Drillers of the
Texas League in August. He was named to the post-season all-star team with Rancho Cucamonga.[17] and was also named the Dodgers Minor League Player of the year.[18] In 116 games between Rancho Cucamonga and Tulsa, he slashed .324/.399/.514 with 15 home runs and 57 RBIs.[19]
Lux began 2019 with the Tulsa Drillers.[20] He was selected to the mid-season Texas League All-Star Game[21] and also the
All-Star Futures Game.[22] He was promoted to the Triple–A
Oklahoma City Dodgers on June 27.[23][24][25] He batted .347/421/.607 with 99 runs (2nd in the minor leagues), 61 walks (tied for first in the minors), 8 triples (4th), 26 homers (5th), and 76 RBIs (7th) in 113 combined games in the minors.[12][26] Lux was selected as Baseball America's
Minor League Player of the Year[27] and also named by the Dodgers as their minor league player of the year for the second straight season.[28]
Los Angeles Dodgers
Lux was called up by the Dodgers to make his major league debut as the starting second baseman against the
Colorado Rockies on September 2, 2019.[29] He singled on the first pitch he saw from
Peter Lambert and doubled in his second at-bat. He also scored three runs in the game.[30] On September 10, 2019, Lux hit his first MLB home run off
Tanner Scott of the
Baltimore Orioles.[31] In 23 games with the Dodgers in 2019, he had 18 hits in 75 at-bats (.240 average), hit two home runs and drove in nine runs.[32] On October 3, in his first at-bat in his postseason debut, Lux hit a pinch-hit solo home run off
Hunter Strickland of the
Washington Nationals. At 21 years and 314 days old, Lux became the youngest player all-time to hit a pinch-hit home run in the postseason. He was also the youngest Dodger to hit a home run in a postseason game, a record previously held by
Cody Bellinger, who homered at the age of 22 years and 88 days during the
2017 NLDS against the
Arizona Diamondbacks.[33]
The 2020 season was delayed and shortened by the
COVID-19 pandemic and Lux missed the first week of training camp in July and was not able to regain his timing so he was optioned to the team's alternate training site to begin the season.[34] He was not called back up to the Dodgers until the beginning of September[35] and played in only 19 games, hitting .175/.246/.349 with three homers and eight RBIs in 63 at bats.[32] He was left off the post-season roster for the
first round then was added back for the
second round.[36] He had one plate appearance as a pinch hitter in the series but was left off the roster for the subsequent series.[37]
In 2021, Lux hit .242 with seven homers and 46 RBIs in 102 games.[32] While he primarily played second and short he was moved into the outfield at the end of the season in order to get him more playing time.[38] Lux became the full time second baseman for the Dodgers in
the 2022 season, playing in 129 games and batting .276 with six homers and 42 RBI. He also led the National League in triples with seven.[32]
Lux was expected to become the Dodgers starting shortstop for the 2023 season. However on February 27, during a
spring training game, his knee buckled while running the bases and he was diagnosed with a torn
anterior cruciate ligament in his knee, which kept him out the entire
2023 season.[39] Despite missing all of the previous season, Lux signed a $1.22 million contract with the Dodgers in his first season of
salary arbitration.[40]
A fully healthy Lux went to spring training in 2024 with the Dodgers still intending for him to play shortstop, however his poor defense at the position in the
Cactus League games led to the Dodgers moving him back to second base.[41]