Injuries & Moves: Top prospect Lawlar placed on IL with hamstring strain

June 19th, 2024


June 18: SS suffers Grade 1 left hamstring strain, placed on IL
The D-backs' No. 1 prospect (MLB No. 8) was injured while legging out a triple for Triple-A Reno on June 15. Lawlar was placed on the seven-day injured list on Monday after undergoing an MRI to determine the extent of the injury. It's Lawlar's second IL stint this season after undergoing surgery on his right thumb in March. He returned to action on May 29 before joining Reno on June 11, where he hit .400 with one home run and eight RBIs across four games.

10-day/15-day injured list

SS (left hamstring strain; No. 1 on D-backs Top 30 Prospect list)
Expected return: TBD
Lawlar injured his left hamstring while legging out a triple in the ninth inning of Triple-A Reno’s June 15 game. Lawlar had an MRI on June 17 that showed a Grade 1 strain, and he is expected to miss at least a month. This is Lawlar’s second stint on the IL this year after he opened the season with a thumb injury and played his first Minor League game on May 29. (Last updated: June 18)

RHP (right hamstring strain)
Expected return: TBD
Gallen threw a 31-pitch bullpen session on June 11 and a 37-pitch session on June 14. He is scheduled to throw a simulated game June 18. It's uncertain whether he will need another sim game after that. After throwing his sixth pitch of the game in the D-backs' 3-2 loss to the Mets on May 30, Gallen called over catcher Gabriel Moreno and wound up walking off the mound with a trainer. He was diagnosed with a strained right hamstring, which the club later announced as a Grade 1 strain. Gallen was placed on the injured list the next day. (Last updated: June 14)

OF (strained left hamstring)
Expected return: TBD
Thomas has begun a rehab assignment in the Arizona Complex League and will likely move to Triple-A Reno to continue it. He had been scheduled to come off the IL on May 7, but per manager Torey Lovullo, Thomas felt something in his injured left hamstring after playing in a rehab game on May 5. He received a platelet-rich plasma injection to alleviate swelling on May 13.

Thomas injured his left hamstring when he grounded into a double play in the first inning on March 31 against the Rockies. He underwent an MRI exam on April 1 that showed a strain in the hamstring that was greater than a Grade 1, but not quite a Grade 2. (Last updated: June 14)

RHP (right shoulder inflammation)
Expected return: TBD
Castro threw a 21-pitch bullpen on June 11 and a 26-pitch session June 14. (Last updated: June 14)

LHP Blake Walston (left elbow strain)
Expected return: TBD
Walston informed the team following his June 4 start against the Giants that he had been experiencing some discomfort in his elbow. A subsequent MRI showed inflammation. (Last updated: June 6)

60-day IL

RHP (right shoulder strain)
Expected return:
Kelly has begun a throwing program, playing catch from up to 75 feet. He was placed on the injured list on April 23, two days after being scratched from his start in San Francisco. Kelly said he felt something grab in his shoulder while playing catch in the outfield at Oracle Park on April 20. He was transferred to the 60-day IL on May 2. (Last updated: June 8)

LHP (left lat strain)
Expected return:
Rodriguez has begun a throwing program, but the team is taking things very slowly since his setback last month. His initial throwing program was paused after he experienced some discomfort in the left lat following an April 9 bullpen session. On April 17, he was moved to the 60-day IL.

The southpaw was removed on March 19 against the Cubs in a Cactus League game with left lat tightness after completing his warmup tosses for the second inning. An MRI taken the following day showed a strain, and he was placed on the injured list to open the year. (Last updated: May 24)

LHP (thoracic outlet surgery)
Expected return:
2025 Spring Training
Nelson underwent thoracic outlet surgery on May 6. The surgery was performed by Dr. Gregory Pearl, the same doctor who performed a similar procedure on Merrill Kelly in 2020. Nelson is expected to miss the rest of the season. (Last updated: May 7)

RHP (right elbow inflammation)
Expected return: 2025
Jameson underwent Tommy John surgery last September and per manager Torey Lovullo he is expected to miss the entire 2024 season. (Last updated: Feb. 15)