Severino began his professional career in 2006, pitching for the DSL Nationals. He appeared in 13 games, eight of which were starts, going 2-0 with a 0.99 ERA in 451⁄3 innings, striking out 69 batters.
In 2007, he pitched for the DSL Nationals (3-0, 0.48 ERA in 3 games started) and GCL Nationals (1-0, 2.94 ERA in 13 games, five starts), going a combined 4-0 with a 2.06 ERA in 16 games (eight starts). He had 59 strikeouts in 521⁄3 innings.
He split the 2008 season between the Potomac Nationals (0-4, 3.96 ERA in 26 relief appearances) and Hagerstown Suns (4-2, 4.05 ERA in 15 relief appearances), going a combined 4-6 with a 4.00 ERA in 41 relief appearances.
He improved in 2009, as he split the season between Potomac (4-0, 2.54 ERA in 29 games) and Harrisburg Senators (6-0, 2.78 ERA in 15 games), going a combined 10-0 with a 2.62 ERA in 44 relief appearances.[1]
He appeared on the Major League roster with the Nationals for three days in 2010, but did not make a pitching appearance at that level.
Severino made his Major League debut on September 6, 2011. He appeared as a reliever in 6 games in 2011, going 1-0 with a 3.86 ERA in 42⁄3 innings, striking out 7 and walking 1.[2]
In 2012 Severino made 46 relief appearances for the Triple-A Syracuse Chiefs, posting a record of 3-0 with a 2.81 ERA plus three saves.[3] He was designated for assignment on August 6, 2012.
Kansas City Royals
On November 16, 2012 the Kansas City Royals announced they had signed Severino to a minor-league contract for the 2013 season. No financial terms of the deal were announced.[3]
Pittsburgh Pirates
Severino was traded to the Pittsburgh Pirates on May 30, 2013, in exchange for cash considerations.[4]
Atlanta Braves
He signed a minor league deal with the Atlanta Braves in December 2013.
_(cropped).jpg)
