Arizona Diamondbacks left-handed pitcher Jose Castillo (adductor) made his season debut over the weekend with Triple-A Reno. In this outing, the southpaw tossed a clean frame and struck out two batters. Castillo opened the campaign on the injured list due to left adductor tightness. Fantasy managers should continue to monitor his progress with Triple-A as he could be in the mix to return to the big leagues in the coming weeks. Through his career, Castillo has logged 40 1/3 innings in the majors and tallied an impressive 55 punchouts while holding a 4.24 ERA with a strong 1.04 WHIP. Last summer, the left-hander spent most of his time with Triple-A Reno as he logged 20 2/3 innings to the tune of a 4.35 ERA and a 1.21 WHIP. For now, Castillo should not be on your fantasy radar as he slowly increases his workload.

The Arizona Diamondbacks re-signed left-hander Jose Castillo to a minor-league deal on Wednesday. Castillo spent all of the 2024 season pitching at Triple-A Reno, posting a 4.35 ERA in 21 games and 20 2/3 innings pitched. He will return to return for the second straight year in 2025 while providing the D-backs will a valuable left-handed relief arm. Arizona currently has a strong left-handed relief group at the major-league level, including A.J. Puk, but Castillo could be on the short list to be called up to the majors if any of their southpaws is injured. The Venezuelan hurler made his MLB debut in 2018 with the San Diego Padres, and all four of his big-league seasons have come with them. In his 40 relief appearances for the Padres, he recorded a 4.24 ERA, 1.04 WHIP, 55 strikeouts and 16 walks in 40 1/3 innings pitched. Of his 40 1/3 innings in the bigs, 38 1/3 of them came in 2018.

The Miami Marlins acquired left-hander Jose Castillo from the San Diego Padres on Tuesday in exchange for cash considerations. The Marlins then optioned Castillo to Triple-A Jacksonville. The move comes after the Padres designated Castillo for assignment last week. In his only relief appearance for the Friars in 2023, he allowed four earned runs on two hits while walking two and striking out none in one-third of an inning on July 4 against the Los Angeles Angels. The 27-year-old Venezuelan southpaw was sporting an ugly 9.82 ERA, 2.07 WHIP, two saves, 11 walks and 22 strikeouts in 18 1/3 relief innings over 22 appearances for Triple-A El Paso before the trade.