Minnesota Twins infield prospect Kaelen Culpepper continues to showcase his elite five-category profile at Triple-A and enters Week 9 as a must-stash prospect. Culpepper opened the campaign with Triple-A St. Paul after splitting the 2025 season between Double-A and Triple-A. Over 113 total games over the top levels last summer, Culpepper posted a .289/.375/.469 line with 20 home runs and 25 stolen bases. Through 45 games at St. Paul, the infielder has already gone deep 10 times while swiping 11 bags. He has held a .247/.347/.462 line with a .809 OPS. Over his last 12 games, he has posted a stellar 8:8 K:BB with two of these long balls and four stolen bases. Given that the Twins lack many proven options in their current infield and the recent demotion of Royce Lewis, Culpepper could have his name called in the immediate future. He should be viewed as a top stash target in all leagues ahead of Week 9.

Seattle Mariners pitching prospect Kade Anderson enjoyed a dominant bounce-back effort after a season-worst showing. On May 15, the former LSU superstar's near-perfect regular season came to a sudden halt as he allowed six hits and five runs, both of which set season highs. However, on May 22, the left-hander quickly returned to form, logging 4 2/3 shutout frames with three hits and a 7:2 K:BB. Removing his lone outlier outing from his game log, the former No. 3 overall pick would carry an incredible 0.52 ERA, 0.72 WHIP, and a 54:7 K:BB over a short 34 2/3 inning stint with Double-A. Given his current production, the sotuhpaw is already on the verge of reaching Triple-A and may only need a brief taste of the level before reaching Seattle. Even though there is no clear spot for him on the MLB roster, he possesses the highest upside among pitching prospects to stash, making him a priority target in all formats.

Miami Marlins top pitching prospect Thomas White (shoulder) was placed on the 7-day injured list last week with a shoulder injury. This was a tough blow for the budding ace as he appeared to have a clear path to making his MLB debut in the immediate future, as Robby Snelling was shifted to the 15-day injured list. However, even though this injury hurt his short-term upside, his long-term value remains high, as this shoulder injury is not expected to be overly serious. Fantasy managers should continue to keep a close eye on his status as he could return to the bump before the ned of June, which could keep him in play for a first-half MLB debut. The 21-year-old missed the start of the Triple-A season due to an oblique injury but has been effective when on the mound, striking out 25 hitters over 18 2/3 innings. With a clear path to the majors still in play, White is a viable stash target for those in deeper 12+ team leagues with multiple N/A spots.

Chicago White Sox starting pitching prospect Hagen Smith continues to showcase high-end strikeout potential at the top club in the minor leagues. While Smith's overall production has remained far from consistent, the young southpaw has continued to miss bats at a high rate, which has caused his stash upside to gradually increase. The 22-year-old joined the White Sox with the fifth overall pick in the 2024 MLB Draft and has quickly progressed through the minor leagues. Last summer, Smith spent his entire campaign with Double-A, where he struck out 108 hitters over 75 2/3 innings while holding a 3.57 ERA. However, during his first stint with Triple-A, Smith has posted a modest 4.54 ERA with a 47:27 K:BB over 33 2/3 innings. While his command needs to be stronger, Smith does not face much competition to earn a spot in the MLB rotation, which makes him worth closely monitoring in deeper redraft leagues.