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Sonny
Siebert
Pitcher
Birthdate
14/1/1937
BAT/THR
Right/Right
Overview
News
Stats
Bio
Splits
Game Log
Biography
Position
Pitcher
Birthdate
14/1/1937
BAT/THR
Right/Right
Debut Year
1964
Career History
Oakland Athletics
1975*-1975 (1 Season)
San Diego Padres
1975*-1975 (1 Season)
St. Louis Cardinals
1974-1974 (1 Season)
Texas Rangers
1973*-1973 (1 Season)
Boston Red Sox
1969*-1973* (5 Seasons)
Cleveland Indians
1964-1969* (6 Seasons)
MLB News
Fantasy Baseball Forecaster Week 10: June 1-7
Set your lineups for the week ahead in fantasy baseball with our preview featuring pitcher rankings, hitter ratings and schedule observations.
Fantasy baseball: Reds await word on De La Cruz and other Monday news
All of the important fantasy spin and actionable takeaways resulting from the latest baseball news.
June update: 2026 top 10 prospect rankings for all 30 MLB teams
Kiley McDaniel digs in to who's rising and falling in every major league farm system entering June.
Which MLB pitcher had better May: Misiorowski or Sanchez?
The two National League Cy Young candidates were lights out over the last month.
Fantasy baseball forecaster: Team hitting ratings
Stay ahead of the game and optimize your fantasy baseball hitters with our forecaster, which provides a rolling 10-day outlook of every team's hitting matchups as well as the potential for stolen bases.
Fantasy baseball forecaster: Pitcher projections for the next 10 days
Keep up to date on who is pitching -- and how well they're expected to do -- with our forecaster, which provides a rolling 10-day outlook of every team's probable starting pitchers with game score projections.
