Thomas (hamstring) has taken batting practice is now advancing to running the bases, Steve Gilbert of MLB.com reports.

EDGE Analysis

Thomas was set commence the baserunning portion of his recovery Wednesday. Arizona manager Torey Lovullo said he's not yet at full speed but is progressing well in his recovery. The Diamondbacks do not yet have a target date for the outfielder to begin a rehab assignment.

Thomas (hamstring) told reporters Friday that he has started facing live pitching and expects to start running bases next week, Alex Weiner of ArizonaSports.com reports.

EDGE Analysis

Thomas landed on the team's 10-day IL on April 1 after sustaining a left hamstring strain. He hasn't done any fielding yet, but he has faced live pitches and is making progress in his rehab. Last season with the Diamondbacks, Thomas slashed .230/.273/.374with nine home runs and 39 RBI over 402 plate appearances.

Thomas was placed on the 10-day injured list by the Diamondbacks on Monday with a strained left hamstring, Alex Weiner of ArizonaSports.com reports.

EDGE Analysis

Thomas suffered the injury during Sunday's game and subsequent testing revealed either a Grade 1 or Grade 2 strain, the outfielder told Jesse Friedman of GoPHNX.com. It would suggest a longer than a minimum stay on the IL is probably likely, although there's no definitive timetable.Jake McCarthy should see the biggest boost in playing time for the Diamondbacks while Thomas is sidelined.

Thomas (hamstring) is absent from the lineup for Monday's contest against the Yankees.

EDGE Analysis

Thomas was lifted after three innings of Sunday's 5-1 win over the Rockies due to left hamstring tightness. The Diamondbacks haven't yet indicated that Thomas might require a stint on the injured list, but the team could offer an update on his status later Monday. Jake McCarthy will pick up his first start of the season Monday in right field while Thomas is on the bench.

Thomas exited Sunday's series finale with the Rockies due to left hamstring tightness, Theo Mackie of The Arizona Republic reports.

EDGE Analysis

Thomas was forced out of the contest in the third inning with what is now understood to be a hamstring injury. The outfielder will likely be considered day-to-day for the time being with the Diamondbacks starting a four-game series with the Yankees on Monday.

Thomas (undisclosed) was removed from Sunday's contest against the Rockies in the fourth inning, Jody Jackson of Bally Sports Arizona reports.

EDGE Analysis

Thomas was replaced in the outfield by Jake McCarthy following the bottom of the third inning, and McCarthy will bat seventh for Arizona for the remainder of the contest. It's unclear what is ailing Thomas, and more information on his status will likely be provided following the conclusion of Sunday's matchup.

Thomas went 1-for-4 with a three-run home run in Friday's 7-3 win over Colorado.

EDGE Analysis

Thomas broke open the game with his first home run as part of a four-run sixth inning. He's started in center field in both games thus far, but his well-documented struggles against left-handers could affect his playing time once Randal Grichuk (ankle) is ready to go. Grichuk began a rehab assignment at Triple-A Reno on Friday and started in center field.

Thomas started in center field and batted eighth Thursday, going 2-for-5 with a double, an RBI and a run scored in a 16-1 win over the Rockies on Opening Day.

EDGE Analysis

The 23-year-old struggled against left-handers last season, but he got the start against Kyle Freeland to kick off 2024 with Randal Grichuk (ankle) on the IL to begin the year. Thomas had one hit in three plate appearances total against southpaws Thursday, but it's unclear if the Diamondbacks plan a strict platoon with him, as had just 81 plate appearances against left-handers in 2023. Until Grichuk gets healthy though, Arizona doesn't have an outfielder on its bench who hits from the right side.

Thomas worked on retooling his swing over the offseason in an effort to create more balance and also separation in activating his hips, shoulders and hands, Theo Mackie of The Arizona Republic reports.

EDGE Analysis

Thomas' father and personal hitting coach, Allen, partnered with a trainer named Chad Miller to open a high-tech hitting company named ID Evolution last spring, and Alek revamped his swing this winter while working with the company's staff. While Thomas said his new swing doesn't feel totally natural yet, he's noticing positive results so far this spring. He hit a ball 116 miles per hour against a Triple-A pitcher prior to spring training, which is notable given that his max exit velocity in his two major-league seasons was 111.3 mph. Thomas has slashed just .230/.274/.359 so far in the big leagues, but the 23-year-old is a former top prospect who hit .316/.391/.500 in the minors. Perhaps the new swing will allow him to come closer to realizing his offensive potential.

Thomas started in center field and 0-for-3 in Tuesday's spring game against the Padres.

EDGE Analysis

Thomas was held out of games while dealing with inflammation in his right wrist. He made a sliding catch on a sinking liner, showing off the stellar defense that finished 2023 with five defensive runs saved and six outs above average. The challenge for Thomas will be to figure out how to stay in the lineup against lefties. The outfielder batted .143 with a .435 OPS over 81 plate appearances last year.