Education
Dominguez attended Gulliver Preparatory in Coral Gables, Florida. Dominguez attended the University of Louisville, where he played college baseball for the Louisville Cardinals baseball team of the Big East Conference.
Dominguez attended Gulliver Preparatory in Coral Gables, Florida. Dominguez attended the University of Louisville, where he played college baseball for the Louisville Cardinals baseball team of the Big East Conference.
He was drafted out of high school by the Texas Rangers in the 17th round of the 2005 Major League Baseball Draft, but he did not sign, opting to attend college. In 2006, he played summer ball for the Newport Gulls. As a freshman in 2007, Dominguez was named to a First Team College Freshman All-American at designated hitter and Columbia (Missouri) Regional Most Valuable Player in the College World Series.
In the summer of 2007 he played for the Harwich Mariners in the Cape Cod League.
After the season, he was drafted by the Colorado Rockies in the fifth round of the 2008 Major League Baseball Draft, but he opted to return to Louisville for another season. In the summer of 2008, he played for the Hyannis Mets in the Cape Cod League, and was named to the All-Star Team.
San Francisco Giants
The San Francisco Giants selected Dominguez in the third round of the 2009 Major League Baseball Draft. He signed with the Giants.
Dominguez made his professional debut with the Arizona Giants of the Rookie-level Arizona League and Salem Keizer Volcanoes of the Class-A Short Season Northwest League in 2010.
He played for the Augusta GreenJackets of the Class-A South Atlantic League (SAL) in 2010, and he was named the SAL All-Star third baseman in 2010. In 2011, Dominguez began the season with the San Jose Giants of the Class-A Advanced California League, before he was promoted to the Richmond Flying Squirrels of the Class-Associate of Arts Eastern League. He was invited to spring training in 2012.
Dominguez was called up to the majors for the first time on September 1, 2014.
On September 21, 2014, Dominguez hit his first Major League home run off Ian Kennedy, accounting for the only runs of the game in a 8-2 loss to the San Diego Padres. On February 4, 2015, Dominguez was released by the Giants.
Cincinnati Reds
On February 11, 2015, Dominguez signed a minor league contract that included an invitation to spring training with the Cincinnati Reds. He elected free agency on November 6, 2015.
Boston Red Sox
On December 15, 2015, Dominguez signed a minor league contract with the Boston Red Sox.