Will Klein

Will Klein

25-Year-Old PitcherRP
Seattle Mariners AAA
2025 Fantasy Outlook
There was no outlook written for Will Klein in 2025. Check out the latest news below for more on his current fantasy value.
$Signed a one-year contract with the Royals in February of 2024. Traded to the Athletics in July of 2024. Traded to the Mariners in January of 2025.
Optioned to Triple-A
PSeattle Mariners  AAA
March 14, 2025
The Mariners optioned Klein to Triple-A Tacoma on Friday.
ANALYSIS
Acquired from the Athletics in January, Klein has allowed four runs (two earned) with an 8:3 K:BB over five innings during Cactus League play. He'll represent relief depth at Tacoma and should get an opportunity with the big club eventually.
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Pitching Stats
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2024
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Left/Right Pitching Splits
Since 2023
 
 
-48%
BAA vs RHP
2025
No Stats
2024
 
 
-48%
BAA vs RHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .538 17 2 3 7 1 0 0
Since 2023vs Right .278 21 5 3 5 3 0 0
2025vs Left 0 0 0 0 0 0 0 0
2025vs Right 0 0 0 0 0 0 0 0
2024vs Left .538 17 2 3 7 1 0 0
2024vs Right .278 21 5 3 5 3 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
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Home/Away Pitching Splits
Since 2023
 
 
-82%
ERA at Home
2025
No Stats
2024
 
 
-82%
ERA at Home
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 6.00 2.17 6.0 1 0 0 7.5 4.5 0.0
Since 2023Away 33.75 3.75 1.1 0 0 0 13.5 20.3 0.0
2025Home 0 0 0 0 0 0 0 0 0
2025Away 0 0 0 0 0 0 0 0 0
2024Home 6.00 2.17 6.0 1 0 0 7.5 4.5 0.0
2024Away 33.75 3.75 1.1 0 0 0 13.5 20.3 0.0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
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Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Recent RotoWire Articles Featuring Will Klein See More
AL FAAB Factor: Waiver Pickups of the Week
237 days ago
Erik Siegrist sifts through the roster fallout in the American League from a busy trade deadline, but it's the Orioles' latest wave of elite prospects that could make the biggest impact.
Closer Encounters: Reliever Trade Madness!
240 days ago
Several big-name relievers changed teams at the deadline, with closers like Tanner Scott and Carlos Estevez heading into unclear situations with their new teams.
AL FAAB Factor: Waiver Pickups of the Week
300 days ago
Erik Siegrist checks out the waiver wire in the American League and thinks Boston's David Hamilton should be getting more attention from fantasy GMs.
Farm Futures: Relief Pitching Prospect Rankings
February 23, 2024
James Anderson goes team-by-team to highlight which pitching prospects could ascend to the closer role in the coming years, including A's righty Mason Miller.
AL FAAB Factor: Waiver Pickups of the Week
August 6, 2023
Erik Siegrist dives into a deep free-agent pool after the trade deadline and expects Justin Verlander to be the top target among players crossing over to the American League.
More Fantasy News
Traded to Seattle
PSeattle Mariners  AAA
January 21, 2025
The Athletics traded Klein to the Mariners on Tuesday in exchange for international slot money.
ANALYSIS
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Taken off 40-man roster
PSacramento Athletics  AAA
January 17, 2025
The Athletics designated Klein for assignment Friday.
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Shelved at Triple-A
POakland Athletics  AAA
Undisclosed
September 8, 2024
Triple-A Las Vegas placed Klein on its 7-day injured list Aug. 31 with an unspecified injury.
ANALYSIS
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Sent to Las Vegas
POakland Athletics  AAA
August 17, 2024
The Athletics optioned Klein to Triple-A Las Vegas on Saturday.
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Acquired by Oakland
POakland Athletics  AAA
July 30, 2024
The Athletics acquired Klein, outfielder Jared Dickey and right-hander Mason Barnett from the Royals on Tuesday in exchange for right-hander Lucas Erceg, Mark Feinsand of MLB.com reports.
ANALYSIS
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