According to Jim Salisbury of CSNPhilly.com, the players' union has filed a grievance against the Phillies on behalf of Michael Schwimer. Schwimer believes he was sent to the minors this past season while injured and apparently wants to be compensated for the salary he would have made if he was on the disabled list at the major league level. The 26-year-old right-hander is healthy now and on the Phillies' 40-man roster.