Career
He previously played for the Washington Nationals. Washington Nationals
León was called up to the majors for the first time on May 13, 2012. He made his Major League debut on May 14, 2012.
In the fourth inning of his debut, León seriously sprained his right ankle, after a collision with Padres" third baseman Chase Headley at home plate
Boston Red Sox
He was designated for assignment on July 21, 2015.
On July 30, 2015 he was sent down to the Pawtucket Red Sox. He was re-added to the roster on September 1.
