Career
He has played in Major League Baseball (MLB) for the Colorado Rockies, San Diego Padres, Minnesota Twins and Houston Astros. Colorado Rockies Deduno was signed as an undrafted free agent by the Colorado Rockies in 2003. Deduno led the Texas League in strike outs in 2007, but missed the 2008 season with an injury.
Deduno was added to the 40-man roster for the Rockies after the 2008 season.
He was called up to the Rockies on August 26, 2010. San Diego Padres He was claimed off waivers by the San Diego Padres on January 28, 2011.
On May 23, Deduno was designated for assignment to clear a spot on the 40-man roster for Blake Tekotte. Minnesota Twins Houston Astros On August 30, 2014, Deduno was claimed off waivers by the Houston Astros.
Deduno relies mostly, especially against right-handed hitters, on a four-seam fastball (89–92 mph) and curveball (80–84 mph).
He throws a small amount of two-seam fastballs, sliders, and changeups against left-handed hitters. The curve is by far his most common pitch in two-strike counts and when he is ahead in the count. His four-seamer has the smallest amount of "rise," or vertical break, among all major league starters since 2007.
This sinker-like effect gives him the best ground ball/fly ball ratio (6:1) among four-seamers in that group.
Remarking on its unusual movement, former Twins catcher Ryan Doumit said, "His fastball"s unlike anything I"ve ever seen.. lieutenant"s like catching a 92-mile-an-hour knuckleball." Deduno has a high walk rate, walking 55 batters in his first 83 innings.