The Twins released Whalen on Tuesday, Brandon Warne of Access Twins reports.

Whalen was released by the Mets on Thursday, Michael Mayer of Metsmerizedonline.com reports.

Whalen signed with the Mets as a non-roster invitee Monday, Andersen Pickard of MLB Daily Dish reports.

Whalen announced viahis personal Twitter account Monday that he's retiring from professional baseball.

Whalen cleared waivers and was outrighted to Triple-A Tacoma on Wednesday, Ryan Divish of The Seattle Times reports.

Whalen was designated for assignment by the Mariners on Saturday, Ryan Divish of The Seattle Times reports.

Whalen is a candidate to make a spot start against the Astros on Sunday if Felix Hernandez is demoted from the starting rotation, Greg Johns of MLB.com reports.

Whalen (shoulder) was placed on the 7-day DL at Triple-A Tacoma on Tuesday, Mike Curto, Rainiers play-by-play broadcaster reports.

Whalen was demoted to Triple-A Tacoma on Sunday.

Whalen was recalled from Triple-A Tacoma prior to Thursday's game against Boston.