Athletics manager Bob Melvin said Friday that he's yet to decide who will be his closer this season.
Athletics signed OF Alejandro De Aza to a minor league contract with an invitation to spring training.
Athletics designated OF Brett Eibner for assignment.
Athletics signed RHP Santiago Casilla to a two-year, $11 million contract.
Athletics re-signed LHP Ross Detwiler to a minor league contract with an invitation to spring training.
Athletics designated RHP Zach Neal for assignment.
Athletics signed INF Trevor Plouffe to a one-year, $5.25 million contract.
FOX Sports' Ken Rosenthal reports that the Astros have "remained in contact with the Athletics on Sonny Gray."
Khris Davis requested $5 million and was offered $4.65 million by the Athletics when arbitration figures were exchanged on Friday.
Athletics and RHP Liam Hendriks avoided arbitration by agreeing to a one-year, $1.1 million contract.
Athletics and C Stephen Vogt avoided arbitration by agreeing to a one-year, $2.965 million contract.
Athletics and RHP Sonny Gray avoided arbitration by agreeing to a one-year, $3.575 million contract.
Susan Slusser of the San Francisco Chronicle reports that the A's have agreed to a two-year contract with Santiago Casilla.
Robert Murray of FanRag Sports reports that the A's are nearing a two-year contract agreement with Santiago Casilla.
According to FOX Sports' Ken Rosenthal, free agent infielder Trevor Plouffe has agreed to a one-year deal with the Athletics.