DECEMBER 17: The Athletics have released De Leon, SB Nation’s Chris Cotillo tweets.
DECEMBER 9: The Athletics have designated Jorge De Leon for assignment, MLB.com’s Jane Lee tweets. His departure opens a 40-man spot for the pieces coming back in exchange for Jeff Samardzija.
Claimed by Oakland in early October, De Leon has a live arm that has seen little MLB action. The 27-year-old has thrown just 17 1/3 MLB innings, allowing ten earned runs and both striking out and walking ten batters. He was much better over 68 2/3 frames in the upper minors this year, however, posting a 3.01 ERA and posting 8.0 K/9 against 3.0 BB/9.
