Career
In 2010 he played in Major League Baseball (MLB) for the Arizona Diamondbacks. Arizona Diamondbacks
He was called up to the majors on May 3, 2010 by the Arizona Diamondbacks and made his debut on the same day. He was designated for assignment on September 13.
Pittsburgh Pirates
After the 2010 season, Valdez was acquired by the Pittsburgh Pirates as the player to be named later in the trade for Zach Duke.
Florida Marlins and Toronto Blue Jays
He was later traded to the Toronto Blue Jays for future considerations. He was released soon after he joined the organization.
Houston Astros
He was signed and invited to spring training in 2016.
