Los Angeles Dodgers catcher/outfield prospect Dalton Rushing went 2-for-3 with a walk and three runs during his MLB debut on Thursday evening against the Athletics. Rushing hit two singles. He got the starting nod behind the dish and was in the seven-hole. This was a promising debut for the top prospect in the Dodger system. While Rushing got the start at catcher in this contest, fantasy managers should continue to monitor his status, as he could work out a role in left field, especially if Michael Conforto were to continue to struggle. At Triple-A this season, Rushing was very productive, posting a strong .308/.424/.514 slash line with five doubles and five home runs. However, given that Rushing appears to only be viewed as a catcher, his upside will be limited, serving as the clear No. 2 behind Will Smith.

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.

Noah Hiles of the Pittsburgh Post-Gazette reports that the Pittsburgh Pirates will activate first baseman Spencer Horwitz (wrist) from the injured list on Friday. Horwitz has been shelved since spring training after he underwent surgery to repair an extensor tendon in his thumb. Pittsburgh acquired him by trade last December in hopes that he'd solve their issues at first base, and he projects to be their everyday option there for the foreseeable future. The 27-year-old has only appeared in 112 games, with a bulk of that experience coming last season with the Blue Jays. He was solid for Toronto with 12 home runs, 19 doubles, 40 RBIs, and a .790 OPS over 97 contests. Horwitz didn't do anything too special during his rehab stint in the minors, but he did bat .323 with a double and a homer over 31 Triple-A at-bats.

The Arizona Diamondbacks are expected to promote right-handed pitching prospect Christian Montes De Oca to the major leagues. Montes De Oca has yet to appear in an MLB contest. Through the early part of the season, Montes De Oca has been very productive with Triple-A Reno. Across 19 innings of relief, the right-hander has posted a strong 2.37 ERA with a 1.00 WHIP. Montes De Oca has struck out 17 batters and served up just four walks. He has tallied one save and allowed just one home run. Last summer, the 25-year-old made his Triple-A debut but struggled as he posted a high 5.24 ERA with a 1.46 WHIP across 56 2/3 innings of work. Fantasy managers should expect Montes De Oca to operate in a low-leverage relief role, which will limit his fantasy upside.

The Tampa Bay Rays have optioned second baseman Coco Montes back to Triple-A Durham on Friday. Montes was recalled from Durham earlier in the week to replace Yandy Diaz, who was on the restricted list. However, with Diaz expected to return on Friday, Montes will return to the minor leagues. Through five games in Tampa Bay this season, the 28-year-old has posted a .200 AVG with a high 30% strikeout rate. Last season, Montes made his MLB debut with the Colorado Rockies and held a similar .184 AVG across 18 games. However, through 304 career games at Triple-A, Montes has been very effective, posting a .303/.385/.521 slash line with 52 home runs and 32 stolen bases, Fantasy managers should expect Montes to have a depth role in the infield if he returns to Tampa Bay later this season.