The Mariners announced a few roster moves on Sunday.
They re-assigned infielder Zach Vincej, catcher Tuffy Gosewisch and relief pitcher Ryan Cook to their minor-league camp, while optioning right-hander Ariel Miranda to Triple-A Tacoma.
Miranda seems the favorite to return to the Mariners on April 11 when they’d need to add a fifth starter, but they could also go with Rob Whalen.
Gosewisch’s move officially makes Mike Marjima the Mariners’ backup catcher to open the season behind Mike Zunino.