Minor Moves: Simons, Miller, Corcoran, Hernandez

A few transactions from the minor leagues…

• The Marlins have signed right-hander Zach Simons, MLBTR has learned.  Simons, 26, was released by the Tigers last week.  Simons was drafted by the Rockies in the second round of the 2005 draft and has a 4.06 ERA and a 7.1 K/9 rate in seven minor league seasons in the Colorado and Detroit systems.
• The Dodgers have signed Justin Miller to a minor league deal, MLBTR has learned.  This is Miller's second stint with L.A. after posting a 4.44 ERA in 19 appearances with the club in 2010 before being designated for assignment.  Miller has pitched for the Mariners' and Rangers' Triple-A teams this season, with a combined 5.31 ERA in 17 appearances.
• The Dodgers signed right-hander Roy Corcoran to a minor league deal and assigned him to Double-A Chattanooga, according to the Southern League's transactions page.  Corcoran last piched in the Majors in 2009 and has a career 4.17 ERA in 82 appearances with the Expos, Nationals and Mariners between 2003 and 2009.  Corcoran pitched for the Astros' Triple-A affiliate in Round Rock last season.
• The Yankees released Fernando Hernandez, according to the International League's transactions page.  Hernandez had posted a 5.91 ERA in 33 appearances for Double-A Trenton this season and made just one appearance for Triple-A Scranton before being released.  The right-hander, who turns 27 later this month, has three Major League innings to his name, all with Oakland in 2008.