Fillmyer will pitch the series finale in Pittsburgh. Fillmyer went a career-high 7 1/3 innings Thursday in a win over Minnesota, giving up five hits and four runs, while striking out six.
Since being acquired from Tampa Bay, Archer has a 5.49 ERA in his first eight starts with Pittsburgh. Through 25 starts between the Rays and Pirates this season, opponents are hitting .272 off him compared to a career average of .239.