McFarland, who fired a scoreless eighth inning in a loss to the Royals on Sunday, has an unblemished ERA over the 4.1 innings covering his four August appearances.
EDGE Analysis
The veteran reliever has allowed just one hit and garnered one hold during that span, although he's also rang up just two strikeouts. McFarland has largely proven effective in what are typically lower-leverage scenarios thus far in St. Louis, pitching to a 3.27 ERA and 0.82 WHIP across 11 innings overall (10 appearances).