Mariñez signed with the Florida Marlins as an amateur free agent in 2006. He was called up to the majors for the first time on July 15, 2010.\n', '

Mariñez and Osvaldo Martínez were sent to the Chicago White Sox as compensation for the hiring of Ozzie Guillén by the Marlins, as Guillen had one year remaining on his contract with the White Sox. On July 13, 2012, Marinez was called up to the majors. He was outrighted off the roster on September 6, 2013.\n', '

Mariñez signed a minor league deal with the Detroit Tigers on November 18, 2013 and was assigned to the AAA Toledo Mud Hens. Along with former Tiger Nate Robertson, he was released from his minor league contract on May 17, 2014 after struggling with his command. \n', '

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