Colorado Rockies left-handed pitching prospect Carson Palmquist is expected to make his MLB debut this evening against the Arizona Diamondbacks. Fantasy managers should continue to monitor his status leading up to the contest in case they opt to have him serve in a long relief role. The 24-year-old is currently considered the No. 9-ranked prospect in the system on MLB.com. Through the early part of the Triple-A regular season, the southpaw has held a 3.82 ERA with a 1.13 WHIP across 35 1/3 innings of work. Palmquist has struck out 45 batters and served up 18 walks. Last summer, Palmquist made his Triple-A debut and posted a much higher 5.86 ERA with a 1.84 WHIP over an identical 35 1/3-inning stint. Given his modest showing at Triple-A, fantasy managers should only view Palmquist as a desperation streaming option in NL-only formats, facing a potent Arizona lineup.

Colorado Rockies pitching prospect Carson Palmquist enjoyed a strong bounce-back outing on Thursday evening. After stumbling in his season debut as he allowed three hits and four earned runs across four 1/3 innings of work, Palmquist was able to get in the win column on Thursday. In this outing, Palmquist shut down Triple-A Sugar Land as he logged five innings of one-run ball with a 1:7 BB:K. He allowed just three hits. Last summer, the 24-year-old southpaw spent most of his time with Double-A before earning a late-season taste of Triple-A. With Double-A, Palmquist logged 87 1/3 innings of work and held a strong 3.17 ERA with a 1.12 WHIP. He tallied 113 punchouts in this stint. If Palmquist continues to improve at Triple-A, he should be in the mix for an MLB debut in the second half.