Castillo may only make one or two starts in September before being shut down for the season, Zach Buchanan of the Cincinnati Enquirer reports.

EDGE Analysis

Though he's recorded wins in just two of his 13 starts, Castillo has been the Reds' top starter since making the leap from Double-A Pensacola to the majors in late June, submitting a 3.26 ERA, 1.14 WHIP and a 9.7 K/9 rate. However, since he's already accumulated 157.2 innings between both levels and the Reds have previously stated that they would like to keep the rookie around 165 innings for 2017, a shutdown seems imminent for Castillo. While that will limit Castillo's utility for fantasy owners the rest of the way, manager Bryan Price indicated it won't have any bearing on the right-hander's status heading into 2018. Price has already stated that the 24-year-old is a lock to open next season as a member of the rotation.