The Mariners have released Charlie Haeger according to the Triple-A Pacific Coast League transactions page. Seattle signed the knuckleballer to a minor league contract in November.
Haeger, 27, started nine games for the Mariners' Triple-A affiliate this season, posting a 7.74 ERA in 47 2/3 innings. He walked 42 and struck out just 35. Haeger has 83 big league innings to his credit, most coming with the Dodgers. He owns a 6.40 ERA with a 7.5 K/9 and 6.4 BB/9 as a Major Leaguer.