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3 Rookie Starting Pitcher Sleepers: Flying Under the Radar

Matthew Vazin analyzes 3 rookie starting pitching sleepers who are impact MLB prospects for fantasy baseball. These SPs are waiver wire pickups if still available.

As fantasy baseball owners, we are always looking for the next big player to help improve our teams. Every year there are starting pitching rookies and prospects who can make an impact for fantasy baseball. Below I will be discussing three pitching sleepers who may still be available on your league's waiver wire, depending on the league format, including NL-Only and AL-Only leagues. These players are probably already owned in most keeper and dynasty formats, but based on their current ownership numbers these pitchers are still flying under the radar in many fantasy leagues.

 

Marcus Stroman, TOR (21% Owned)

Marcus Stroman Toronto Blue Jay MLB NewsMarcus Stroman is making sure the Jays do not regret moving him into the starting rotation. Since joining the team's starting pitching staff, Stroman has gone 12 innings (over 2 starts), giving up just 2 earned runs and striking out an impressive 13 batters. The offense has rewarded him with run production, as he won both of those starts.

Since the Blue Jays have been red-hot and producing many runs consistently, Stroman would be a great addition off the waiver wire to any fantasy baseball team. The opportunities for wins will be there as long as he continues to pitch well. Stroman has had both starts be at home, and will have his third start against the Twins. He likely won’t hold a 1.50 ERA as a starter throughout the season, but if he continues to pitch like this, expect Stroman to not only stay in the rotation, but  to also be in line for many wins. Currently he is only 21% owned in Yahoo leagues.

 

Andrew Heaney, MIA (10% Owned)

It is only a matter of time until Andrew Heaney gets called up from Triple-A and joins the Marlins’ rotation. In 4 starts in Triple-A, the top MLB pitching prospect is 3-0 with an impressive 2.74 ERA. The stat that stands out is his amount of strikeouts. He has posted a 10.57 K/9, which is fantastic.

If fantasy owners have room on their rosters where they can temporarily stash Heaney off the waiver wire, it would be worth the risk. He is a strikeout pitcher, and if he can even come close to posting the numbers he has in the minors while in the majors, fantasy owners will be happy. In 199 total minor league innings, Heaney has struck out 198 batters, which shows the consistency he is capable of. Currently he is only 10% owned in Yahoo leagues.

 

Chase Whitley, NYY (5% Owned)

Masahiro Tanaka has deservedly received all of the attention from Yankees fans this season, but Chase Whitley is quietly putting together a string of good starts himself. In 5 starts where Whitley has filled-in for the hurt Yankees pitchers, he has not allowed more than 3 earned runs. He goes into Thursday’s start versus the Mariners with a 1-0 record and a 2.42 ERA. The strikeouts have been rare for Whitley thus far, but he has begun to go deeper into games, as he is coming off a recent start versus Kansas City where he went 7 innings.

Including Thursday’s start at Seattle, Whitley has been on the road for all but one start, which makes his 2.42 season ERA even more surprising and impressive. Michael Pineda and CC Sabathia will not be back in the rotation anytime soon, so Whitley will have even more time to make his case for a permanent rotation spot. If the Yankees can get their offense going again, look for Whitley’s win total to increase, making him a viable addition in all formats. Currently he is only 5% owned in Yahoo leagues.

 




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REAL-TIME FANTASY NEWS

Tom Wilson

Aliaksei Protas Won't Play Wednesday
Coby White

Sidelined Versus Pistons
Anze Kopitar

Out Wednesday
Draymond Green

Upgraded to Probable on Wednesday
Rome Odunze

Plans to Play on Saturday
LeBron James

Considered Questionable For Wednesday
Edward Cabrera

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Giants "All-In" on Hiring John Harbaugh
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Jackson Arnold Signs with UNLV
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Sam Leavitt Scheduled to Visit Tennessee
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to Miss at Least Two Weeks
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Jamie Drysdale

Makes Early Exit Tuesday
Bobby Brink

Injured in Tuesday's Win
Adam Henrique

Expected to Miss Time
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Haydn Fleury

Hospitalized Tuesday
Moussa Diabaté

Ryan Kalkbrenner Out, Moussa Diabate Probable Wednesday
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Alex Caruso

Absent for Second Consecutive Game
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Available Wednesday
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a Game-Time Call Tuesday
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John Harbaugh Won't Return as Ravens Head Coach
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Ready to Start in Wild-Card Game Against Bears
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Jadan Baugh Staying with Florida for Junior Season
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Commanders "Mutually" Parting Ways With OC Kliff Kingsbury
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Byrum Brown Officially Commits to Auburn
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Austin Simmons Signing with Missouri
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to Sit Out One Week
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to Miss Time
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Flyers Sign Christian Dvorak to Five-Year Extension
Igor Shesterkin

Exits With Lower-Body Injury Monday
Joel Armia

Hurt in Monday's Win
CFB

Ty Simpson Undecided on 2026 Plans
CFB

Quarterback AJ Hill Following Ryan Silverfield to Arkansas
Atlanta Falcons

Falcons Have Requested an Interview With Klint Kubiak
Deshaun Watson

Browns Expect Deshaun Watson to be on the Team Next Year
Wan'Dale Robinson

Dealing With Fractured Ribs
Cam Skattebo

Hopes to be Back by Training Camp
Cameron Ward

Won't Need Surgery on his Shoulder
Davante Adams

Rams Expect Davante Adams to Return in Wild-Card Round
Arizona Cardinals

Cardinals Fire Head Coach Jonathan Gannon
Las Vegas Raiders

Raiders Fire Head Coach Pete Carroll
Malik Nabers

Unsure if He Will Be Ready for Week 1 of 2026 Season
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Trinidad Chambliss Will Return to Ole Miss If Granted Sixth Year of Eligibility
Cincinnati Bengals

Zac Taylor Will Return as Bengals Head Coach in 2026
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Giants Expected to Show Interest in Former Browns Head Coach Kevin Stefanski
Daniel Jones

Colts, Daniel Jones Appear to Have "Mutual Interest" in a 2026 Reunion
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Browns Fire Kevin Stefanski After Another Losing Season
Zay Flowers

Goes Off for 138 Yards, Two Touchdowns in Loss
Bo Bichette

Phillies Have Interest in Bo Bichette
Amon-Ra St. Brown

Dominates in Week 18 Win
Kansas City Royals

Matt Quatraro Signs Three-Year Extension With Royals
CFB

Transfer QB Billy Edwards Commits to North Carolina
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Sam Leavitt Visiting Texas Tech on Saturday
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DJ Lagway Expected To Visit Florida State
Kyle Tucker

Blue Jays "Remain the Favorite" to Sign Kyle Tucker
CFB

Joey Aguilar Undergoes Surgery to Remove Tumor on Friday
CFB

Texas the "Team to Beat" for Transfer Running Back Isaac Brown
CFB

Rocco Becht to Follow Matt Campbell to Penn State?
CFB

Texas Targeting Cam Coleman in Transfer Portal
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Former Texas Running Back CJ Baxter Visiting Kentucky
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Beau Pribula Visiting Virginia Tech, Georgia Tech
Bo Bichette

Yankees Showing Interest in Bo Bichette

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