The Washington Nationals made the following roster moves on Monday. Nationals President of Baseball Operations and General Manager Mike Rizzo made the announcements.
Blazek, 30, appeared in 23 games out of Fresno’s bullpen. He struck out 28 batters, issued 10 walks and held opposing batters to a .224 batting average in the hitter-friendly Pacific Coast League. In his last eight outings dating to June 25, Blazek posted a 1.74 ERA (2 ER/10.1 IP)
A veteran of four Major League seasons, Blazek has posted a 4.39 ERA in 109 games for the Milwaukee Brewers (2013-17) and St. Louis Cardinals (2013). He was originally selected by St. Louis in the 35th round of the 2007 First-Year Player Draft.
Stevenson, 25, returns for his second Major League assignment of the season. He joins the Nationals in the midst of a 13-game hitting streak in which he is hitting .407 (22-for-54) with six doubles, two triples, two homers, eight RBI, three walks and seven runs scored. In 72 games for the Grizzlies in 2019, Stevenson is hitting .340 with a .389 on-base percentage and a .512 slugging percentage.
Zimmerman, 34, is hitting .246 with eight doubles, three homers, 15 RBI, 12 walks and 12 runs scored in 33 games for the Nationals in 2019.
Miller, 32, was originally placed on the Injured List on May 18 with a right rotator cuff strain.
McGowin, 27, has posted a 9.69 ERA in five games (one start) for the Nationals in 2019.