The Oakland A's announced on Tuesday that they had traded right-hander Arnold Leon to the Toronto Blue Jays for cash considerations or a player to be named later. Leon was designated for assignment on December 28 when the A's signed free agent right-hander Henderson Alvarez.
Leon made his major-league debut in 2015 and posted a 4.39 ERA in 26.2 innings with the A's. He had a 2.95 ERA in 58 innings for Triple-A Nashville. Leon has a career 3.82 ERA in 586.2 minor league innings.
Leon had been with the A's organization since he was acquired from his Mexican Summer League team before the 2008 season. Leon split the 2008 season between High-A Stockton in the A's organization and Saltillo of the Mexican Summer League. Since that season, he has been a full-time member of the A's organization.
Leon was part of a 2009 Double-A Midland RockHounds squad that won the Texas League championship. He was teammates with Blue Jays' third baseman Josh Donaldson on that team (Donaldson was the catcher for the Midland squad). Leon moved into the Midland starting rotation late in the 2009 season with success and was a prospect on the rise when he injured his elbow in April 2010. The injury required Tommy John surgery. Leon's recovery from the surgery took more than a year and he didn't return to live game action until late 2011.
In 2012, Leon began the year as a reliever in High-A but reached Triple-A by mid-season. He posted a 1.77 ERA in his first taste of Triple-A baseball and was added to the A's 40-man roster that off-season. Leon moved back into the starting rotation in 2013 and spent the 2013 and 2014 seasons as a starter before returning to the bullpen as a swingman in 2015. Leon made 39 appearances between Triple-A and the major leagues in 2015 and all but six came as a reliever.
Leon has a fastball that can touch 94 out of the bullpen and sits in the 90-92 MPH range. He also features a curveball, slider and change-up.