Seattle Mariners Executive Vice President & General Manager Jerry Dipoto announced the following roster moves at the Mariners Major League spring camp Monday.
 
Optioned to AAA Tacoma (2):
Left-Handed Pitcher (1): Paul Fry
Infielder (1): D.J. Peterson
Optioned to AA Arkansas (2):
Left-Handed Pitcher (1): Zac Curtis
Right-Handed Pitcher (1): Thyago Vieira
 
Re-Assigned to Minor League Camp (5):
Right-Handed Pitcher (2): Peter Tago, Dylan Unsworth
Outfielder (1): Kyle Waldrop
Catcher (2): Marcus Littlewood, Tyler Marlette
 
Today's roster moves leave the Mariners with 53 players in their Major League camp: 37 roster players and 16 non-roster invitees.