Education
He did not sign and attended Clemson University.
He did not sign and attended Clemson University.
Shaffer was drafted by the Los Angeles Dodgers in the 25th round of the 2009 Major League Baseball draft out of Providence High School in Charlotte, North Carolina. During his college baseball career with the Clemson Tigers, he hit.325/.449/.562 with 30 home runs and 137 runs batted in. The Tampa Bay Rays selected Shaffer in the first round, with the 25th overall selection, of the 2012 Major League Baseball draft.
He made his professional debut for the Hudson Valley Renegades of the Class A-Short Season New York–Penn League, hitting.308/.406/.487 and four home runs in 33 games.
In 2013, he played for the Charlotte Stone Crabs of the Class A-Advanced Florida State League, hitting.254/.308/.399 with 11 home runs. He played in the Arizona Fall League after the season.
He started the 2014 season for the Montgomery Biscuits of the Class Associate of Arts Southern League. Shaffer began the 2015 season with the Biscuits, and received a midseason promotion to the Durham Bulls of the Class American Automobile Association International League.
On August 3, 2015, the Rays promoted Shaffer to the major leagues.