Question: What ethnicity is this American professional baseball right fielder born in 1987 play, who graduated from Nova Southeastern University?

Passages:
Julio Daniel Martinez (born August 21, 1987) is an American professional baseball right fielder for the Arizona Diamondbacks of Major League Baseball (MLB).  He previously played for the Houston Astros and Detroit Tigers.  Martinez is of Cuban descent.  He is one of 18 players in MLB history to hit four home runs in a single game. <P3-S0> Carlos Eduardo González (born October 17, 1985) (nicknamed CarGo) is a Venezuelan professional baseball right fielder for the Colorado Rockies of Major League Baseball. <P3-S1>  A three-time All-Star, González is a former National League batting champion. <P3-S2>  He has also won two Silver Slugger Awards and is a three-time Gold Glove Award winner. <P3-S3>  While mainly a left fielder throughout his career, Gonzalez became the Rockies starting right fielder in 2015. <P0-S0> Jason Alias Heyward (born August 9, 1989), nicknamed "J-Hey" is an American professional baseball right fielder for the Chicago Cubs of Major League Baseball (MLB). <P0-S1>  Originally the Atlanta Braves' first-round selection in the 2007 MLB draft from Henry County High School in Georgia, he began his minor league career at age 17. <P0-S2>  Heyward soon became one of the top-rated prospects in all of baseball for batting, speed, and defense, and debuted in MLB as Atlanta's starting right fielder on Opening Day 2010. <P0-S3>  There, he played until being traded to the St. Louis Cardinals after the 2014 season. <P0-S4>  Standing 6 ft tall and weighing 245 lb , he throws and bats left-handed. <P0-S5>  He has worn uniform No. 22 throughout his major league career in honor of a high school friend and teammate who died in a traffic collision. Mark B. Sobell, Ph.D., ABPP, a professor at the College of Psychology of Nova Southeastern University in Fort Lauderdale, Florida, is a specialist in addiction.  Dr. Mark Sobell is nationally and internationally known for his research in the addiction field.  He is a Fellow of the American Psychological Association in Divisions 1, 3, 12, 25, 28, and 50, and is Board Certified in Cognitive and Behavioral Psychology by the American Board of Professional Psychology.  He is the co-director of Healthy Lifestyles: Guided Self-Change at Nova Southeastern University. The Nova Southeastern Sharks baseball program represents Nova Southeastern University in the National Collegiate Athletic Association's NCAA Division II level.  The Sharks have a very short history, having less than thirty years of play under their belt; however, the sharks have won the Division II championship in 2016, as well as producing several MLB stars, such as J. D. Martinez of the Arizona Diamondbacks, and Mike Fiers of the Houston Astros.  They are coached by Greg Brown. Warren J. Winstead (November 10, 1927 – December 3, 2001) is an American academic, and was the first president of Nova Southeastern University.  Winstead graduated from Harvard University with a PhD.  (NSU says "He obtained his B.A. and M.S. from the University of Richmond.  He later obtained a C.A.S. and Ed.D. from Harvard University.")  He became the President of Nova Southeastern University in 1964 and was president until 1970. Ovid C. Lewis (August 6, 1932 – January 26, 2011) was an American academic, and was the fourth president of Nova Southeastern University.  Lewis graduated from Duke University and Yale University.  He became the President of Nova Southeastern University in 1994 and was president until 1997. George L. Hanbury II (born 1943) is an American academic, and the President of Nova Southeastern University.  Hanbury graduated with his bachelor's degree from Virginia Polytechnic University, a master's degree from Old Dominion University and his doctorate from Florida Atlantic University.  He became the President of Nova Southeastern University in 2010. Ray F. Ferrero Jr. (born January 17, 1934) is an American academic, and was the fifth President of Nova Southeastern University.  Ferrero graduated with his bachelor's degree from St. John's University.  He received his Juris Doctorate from the University of Florida in 1960.  He became the President of Nova Southeastern University in 1998.  Ferrero served as the President of the Florida Bar in 1987. Abraham S. Fischler (January 21, 1928 – April 3, 2017) was an American academic, and was the second president of Nova Southeastern University.  Fischler graduated from Columbia University in 1959 with his Ed.D.  He went on to serve as Assistant Professor of Science Education at Harvard University and Professor of Education at the University of California, Berkeley before joining the fledgling Nova University in 1966.  Fischler served as Dean of Graduate Studies and Director of the Behavioral Sciences Center from 1966 to 1969.  He became the President of Nova Southeastern University in 1970 and was President until 1992.

Supporting sentences:
 The Sharks have a very short history, having less than thirty years of play under their belt; however, the sharks have won the Division II championship in 2016, as well as producing several MLB stars, such as J. D. Martinez of the Arizona Diamondbacks, and Mike Fiers of the Houston Astros. Julio Daniel Martinez (born August 21, 1987) is an American professional baseball right fielder for the Arizona Diamondbacks of Major League Baseball (MLB).  Martinez is of Cuban descent.