Minor Moves: Royals, Rowland-Smith, Hessman

Some minor transactions from around the majors…

• The Royals signed Cuban outfielder Roman Hernandez Jorrin, reports Jorge Ebro of El Nuevo Herald (Twitter link).  Hernandez Jorrin, 22, is a right-handed hitter who escaped from Cuba in November 2010.
• The Cubs have signed Ryan Rowland-Smith to a minor league deal, tweets ESPN.com's Jerry Crasnick.  The Australian southpaw compiled a 4.57 ERA and a 1.64 K/BB ratio in 362 2/3 innings with the Mariners from 2007-10.  Rowland-Smith spent last season in the Astros' minor league system, posting a 6.19 ERA in 22 games at Triple-A Oklahoma City.
• The Astros signed Mike Hessman to a minor league contract, reports Zachary Levine of the Houston Chronicle.  The deal doesn't include an invite to the Astros' big league Spring Training camp.  Hessman has a .694 OPS in 250 career plate appearances with the Mets, Tigers and Braves on the Major League level and also has 335 career minor league homers.  The 33-year-old played for the Orix Buffaloes in Japan last season.
• The Reds have signed right-hander Wirfin Obispo to a minor league contracts, reports Jon Paul Morosi of FOX Sports (via Twitter).  Signed as an 18-year-old shortstop by the Red Sox in 2002, Obispo was converted to pitching by the Reds in 2004 and put up solid numbers for Cincinnati's Dominican summer league team over the next three seasons.  Obispo has since pitched in Japan, posting a 3.25 ERA, a 7.8 K/9 rate and a 3.22 K/BB ratio in 46 games (28 of them starts) with the Yomiuri Giants and the Nippon Ham Fighters.