Promising young outfielders Braden Bishop and Ian Miller and right-handed relievers Art Warren and Matt Festa are among the 22 non-roster players invited to the Mariners' big league camp when Spring Training opens next month, the club announced Tuesday. Other prospects not already on the 40-man roster who are getting the call are catcher Joe DeCarlo, infielder Jordan Cowan, right-hander Ljay Newsome and outfielder Andrew Aplin. Also invited are six players who saw time with the Mariners last season, but are now in the organization on Minor League contracts -- right-handed pitchers Hisashi Iwakuma, Christian Bergman, Ryan Garton and Casey Lawrence, catcher Tuffy Gosewisch and infielder Gordon Beckham. Right-handed reliever Ryan Cook, who missed all last season following Tommy John surgery, has also received a camp invite. Seattle has also signed seven players from other organizations to Minor League deals and extended them camp invitations -- right-hander Johendi Jiminian, catcher Joe Odom, infielders Zach Vincej, Matt Hague and Rey Navarro and outfielders John Andreoli and Kirk Nieuwenhuis. The 22 players join those on Seattle's 40-man roster who will open camp when pitchers and catchers report Feb. 14, followed by the full-squad reporting Feb. 19.