The Mariners released right-handed reliever Rick White on Thursday, as the team got a rare day off while struggling to stay in the AL wild-card race. White was added to the Mariners' 40-man roster on Aug. 23. He appeared in six games, going 0-1 with an 8.40 ERA, pitching for the 11th team in his career, one short of the major league record. His last appearance came on Wednesday, when he allowed one run in two-thirds of an inning in New York, before being ejected for arguing balls and strikes.