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Marty's fantasy baseball prospect stashes, sleepers, and rookie waiver wire pickups for Week 11 of 2026 -- recent MLB prospect debuts and potential call-ups to monitor.
Fantasy Baseball Hitter Prospects To Target
Braden Montgomery, OF, Chicago White Sox (10% rostered)
Level: MLB
2026 Stats: 258 PA, .314/.422/.548, 52 R, 10 HR, 41 RBI, 5 SB, 15.1% BB%, 24.8% K%, 152 wRC+
It feels like every week we're writing about another White Sox prospect, and for good reason. The team is surging and will need as much offensive firepower as possible to sustain it. Enter Braden Montgomery.
Montgomery made his major league debut Tuesday night and wasted no time showcasing his offensive upside.
BRADEN MONTGOMERY WALK-OFF HOMER IN HIS MLB DEBUT ‼️@whitesox | @AggieBaseball | @MLBDevelops pic.twitter.com/Og6tjcyaYe
— MLB Pipeline (@MLBPipeline) June 10, 2026
Montgomery is a switch-hitting outfielder with plus power, athleticism, and enough speed to contribute on the bases. One of the most exciting aspects of his profile is that he's a legitimate switch-hitter.
From the left side, he projects as a plus-hitter with plus power. From the right side, he looks more like an average-to-above-average hitter with above-average power. Here is a breakdown of Montgomery's splits at Triple-A this season.
Since roughly 70–75% of MLB plate appearances come against right-handed pitching, Montgomery should spend most of his time hitting from his stronger side. However, there are legitimate concerns about the swing-and-miss in his game.
His strikeout rate, particularly against left-handed pitching, along with his overall whiff rates, creates some boom-or-bust risk from a fantasy perspective. Fortunately, he has an advanced approach at the plate that should help prevent his batting average from falling too far.
For fantasy purposes, Montgomery should be rostered in all 12-team, five-outfielder leagues and is worth monitoring in shallower formats.
Cole Carrigg, OF, Colorado Rockies (3% rostered)
Level: MLB
2026 Stats: 257 PA, .338/.414/.529, 55 R, 6 HR, 42 RBI, 30 SB, 10.5% BB%, 15.2% K%, 129 wRC+
After a hot start in Triple-A this season, the Colorado Rockies recently promoted their No. 7 prospect, Cole Carrigg. Carrigg is a speedster who has improved both his strikeout rate and contact skills, while also developing as a switch-hitter.
He’s a versatile outfielder with enough power to potentially grow into a 20-home run hitter, especially with the benefit of Coors Field. From a fantasy perspective, Carrigg's upside profiles as a “poor man’s Pete Crow-Armstrong,” with a much friendlier home park.
Looking at the underlying metrics, he posted a .268 expected batting average (xBA) in Triple-A this season while recording a 110.1 mph max exit velocity.
For context, that’s the same max exit velocity as players like Brandon Marsh, Gavin Sheets, Jacob Young, and Max Muncy of the Los Angeles Dodgers.
Not only does he have loud tools, but his defensive ability should keep him in the lineup even if he goes through rough stretches at the plate. That said, most scouts believe he has a below-average hit tool, so don't expect a batting average above .260.
He struck out 27.5% of the time in Double-A last season, though he has made encouraging progress in Triple-A this year, lowering that mark to 15.5%.
Carrigg should be rostered in all 15-team leagues because of his stolen-base upside. In 12-team formats, he’s worth monitoring closely, especially for teams looking to add speed.
Denzer Guzman, SS/3B, Los Angeles Angels (2% rostered)
Level: MLB
2026 Stats: 268 PA, .336/.403/.571, 45 R, 12 HR, 57 RBI, 9 SB, 10.1% BB%, 17.9% K%, 136 wRC+
The Los Angeles Angels recently called up right-handed hitting infielder Denzer Guzman, and it appears he will receive regular playing time at third base with Yoan Moncada (knee) on the injured list.
He will also spell shortstop Zach Neto as needed. Compared to Montgomery and Carrigg, Guzman carries the most risk, largely due to his contact issues and aggressive approach.
Last season, he posted a 71.6% contact rate and 29.4% strike out rate across 153 Triple-A plate appearances. This year, both numbers have drastically improved, but will this carry over to the majors?
Not sure, but he has found success in the minors this year. In May, the 22-year-old won the Pacific Coast League Player of the Month award.
Denzer Guzman earns PCL Player of the Month after leading the league with a .382 average, 42 hits, and 31 RBI
Read more: https://t.co/4ec8xDZW5S pic.twitter.com/d8Vzj9KhOI
— Salt Lake Bees (@SaltLakeBees) June 4, 2026
However, it’s also worth noting that Triple-A Salt Lake is one of the most hitter-friendly environments in professional baseball, meaning some of his offensive numbers could be inflated.
Still, he’s a power-hitting middle and corner infielder who can chip in a few stolen bases, and that profile carries value, especially in a season where third base has been particularly thin.
While you don’t need to rush to add him, he is worth monitoring in 15-team leagues. Keep an eye on his strikeout and contact rates, as they will likely determine whether this promotion sticks.
Fantasy Baseball Pitcher Prospects To Target
Karson Milbrandt, SP, Miami Marlins (2% rostered)
Level: Triple-A
2026 Stats: 53 IP, 1.19 ERA, 0.98 WHIP, 35.0% K%, 9.9% BB%, 3.12 FIP
Right-handed starting pitcher Karson Milbrandt is the Miami Marlins' No. 9 prospect and was recently promoted from Double-A Pensacola to Triple-A Jacksonville.
Welcome to Triple-A, Karson Milbrandt!
The @Marlins' No. 9 prospect -- who had a 27-inning scoreless streak at Double-A earlier this year -- tallies six scoreless frames in his @JaxShrimp debut: pic.twitter.com/HbDVKbartx
— MLB Pipeline (@MLBPipeline) June 7, 2026
The 22-year-old dominated Double-A this season, posting a 1.34 ERA with a 38.3% strikeout rate and a 9.3% walk rate across 47 innings.
Much of Milbrandt's success can be attributed to the development of his cutter and slider, along with a consistent increase in velocity. Overall, he features a four-pitch arsenal, headlined by a mid-to-upper-90s fastball, along with an improving slider and sweeper.
He also mixes in a curveball to keep hitters off balance. So, when should fantasy managers expect him to arrive in Miami? Probably not until August or September.
The Marlins don't currently have an urgent need in the rotation, and the organization has been careful with his development, typically using him once per week rather than on a traditional five-day starter schedule.
Long term, Milbrandt projects as a fantasy SP2/SP3. Once he reaches the majors, he should be rostered in all leagues thanks to his strikeout upside, pitcher-friendly home park, and Miami’s track record of developing young arms.
More Fantasy Baseball Prospects and Rookies
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