D-backs Roster Moves

August 29th, 2026

The Arizona Diamondbacks made the following roster moves. The D-backs’ 40-man roster is at 40.

Selected from Triple-A Reno:

RHP Derek Law (No. 38)

Appointed as 27th man for today’s games:

LHP Mitch Bratt

Optioned to Triple-A Reno following last night’s game:

LHP Kohl Drake

RHP Derek Law (No. 38) │ 35 years old │ R / R │ 6-3, 225 │ MLB Bio

  • Has pitched 8 MLB seasons with the Giants (2016-18), Blue Jays (‘19), Twins (‘21), Tigers (‘22), Reds (‘22-23) and Nationals (‘24), going a combined 23-18 with 13 saves, a 3.69 ERA (142 ER in 346.0), 137 walks and 316 strikeouts in 322 games (7 starts).
  • Will make his first MLB appearance since Sept. 29, 2024 while with the Nationals…did not appear with the Nationals in 2025 due to right forearm inflammation.
  • Agreed to terms with the D-backs on a 1-year Minor League Free Agent contract on Jan. 29…was a non-roster invite in the Spring.
  • Was placed on Triple-A Reno’s 7-day injured list (strained right forearm) on March 27…transferred to the 60-day injured list on July 16 and reinstated on Aug. 12.
  • Made 5 scoreless relief appearances for Triple-A Reno (6.1 IP, 5 H, 0 BB, 5 K).
  • In 2024 in his first season with the Nationals, went 7-4 with 1 save, a 2.60 ERA (26 ER in 90.0 IP), opponent .246 AVG, 24 walks and 76 strikeouts in 75 games…recorded career highs in appearances, innings, wins and strikeouts.
  • His 90.0 innings posted in 2024 were the second most among MLB relievers and 75 appearances tied for third most in the NL.
  • In 2023 with the Reds, went 4-6 with 2 saves, a 3.60 ERA (22 ER in 55.0 IP), opponent .239 AVG, 26 walks and 45 strikeouts in 54 games (3 starts)...his 7.7 (2-for-29) inherited runners scored pct. was the lowest among qualified NL relievers.
  • Drafted by the Giants as a ninth-round selection in 2011 out of Miami Dade College.
  • His father, Joe, pitched 9 Minor League seasons in the Athletics' organization.