(Peoria, AZ)  --  The Mariners held their first full-squad workout in Peoria, Arizona, but four players are absent, including second baseman Dee Gordon.  He is in Florida with his wife as they await on the birth of their first child.  Outfielder Mitch Haniger is in California recovering from surgery last week.   Pitcher Manny Bañuelos and infielder Alen Hanson are having visa issues.  Seattle will open Cactus League play Saturday against the Padres in Peoria.