Fleck pitched a scoreless inning with two strikeouts on Tuesday.
Fleck starts the season with Triple-A Reno, where he went 4-1 with a 3.46 ERA in 2015. The 27-year-old took advantage of his spring training invitation, pitching 4.2 shutout innings, while only allowing three hits and striking out nine batters. Throughout his minor league career, Fleck has provided a great K:BB ratio, displayed by his 66:24 mark last season. If he can continue to pitch to his abilities, Fleck might get his first chance to perform at the major league level later on this season.