Preview: Wisler Returns from Gwinnett

Wisler’s back. Remember when he was good in April and May? - Jason Getz-USA TODAY SportsThe Braves try to split the four-game set behind Matt Wisler, who will be opposed by Robbie Ray.

When the Braves demoted Matt Wisler three weeks ago, it could be taken as a sign that they found his June and July struggles (ERA over 6.00, FIP around 5.00) unacceptable for a member of their rotation, even a developing one.

As Wisler returns to the major league mound, however, even those types of struggles would be a relative improvement over what’s happened to Atlanta’s rotation since then. Get this: in the month of August (i.e., basically since Wisler’s demotion), Atlanta starters have put up a 6.43 ERA and…