I think we won't know until later today. I'd be surprised if Musgrove doesn't replace McCullers for his next start regardless of seriousness. Team will be cautious.
<blockquote class="twitter-tweet"><p>Joe Musgrove takes McCullers' spot in the Astros rotation and will oppose Yu Darvish on Sunday.</p>— Jake Kaplan (@jakemkaplan) <a href="https://twitter.com/jakemkaplan/status/760933319936647168" data-datetime="2016-08-03T20:20:15+00:00">August 3, 2016</a></blockquote> <script src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
Musgrove doesn’t exactly have blow-you-away stuff — he averaged 92 mph with his fastball out of the bullpen on Tuesday — but instead gets by with plus command. With prospects like that, we often don’t see them coming until they’re basically here. They don’t light up the radar gun at the lower levels, and therefore don’t start creeping onto prospect lists until they’ve proven themselves at the upper levels. Musgrove falls into this category as well, as many outlets left him off of their preseason top-100 lists completely. But regardless of his prospect pedigree, Musgrove has made it clear over the last two seasons that he’s very capable of getting minor-league hitters out by way of excellent strikeout-walk differentials. Don’t be surprised if he starts doing the same out of Houston’s rotation. Full article: http://www.fangraphs.com/blogs/projecting-the-newest-member-of-the-astros-rotation/