Professional career

Baltimore Orioles

Hernandez, who is of Mexican-American descent, was drafted by the Baltimore Orioles in the 16th round, 483rd overall pick, of the 2005 Major League Baseball draft. Hernandez made his debut against the Detroit Tigers on May 28, 2009. He went 52⁄₃ innings. He gave up five hits, allowed four walks, and only one earned run while striking out three.

Hernandez throws a 95 mph fastball, a 78 mph slider, and an 84 mph changeup. He is known for his high strikeout rate, which improved at every level in the minors, from 9.54 K/9 in A to 12.46 K/9 in AAA. He is a flyball pitcher - 45% of balls in play are flyballs, with only 38% of them staying on the ground.

Arizona Diamondbacks

On December 6, 2010 he was traded to the Arizona Diamondbacks (along with Kam Mickolio) for Mark Reynolds and a player to be named later (John Hester).

Hernandez missed the 2014 season after undergoing Tommy John surgery.

Philadelphia Phillies

On December 9, 2015 Hernandez signed with the Philadelphia Phillies.

International career

Hernandez attempted to join Team Mexico in the 2013 World Baseball Classic, but was not able to put together the proper documentation in time. After an injury to Chris Perez, Hernandez was asked to join Team USA.

[ Source: Wikipedia ]