On SB Nation's Phillies blog, Paul Boyé looks at Rhys Hoskins' struggles against the changeup.
"Entering Saturday afternoon’s game, Hoskins had seen exactly 100 changeups in all counts, according to TruMedia. ...
In 2-1 counts, Hoskins is being baited. He’s waiting for a fastball, and instead he’s getting the string pulled on him fairly frequently. And when that string gets pulled, well, you see what’s been happening.
Now, that’s not an AB-ender. A 2-1 whiff gives you another shot, and Hoskins has been more than capable of handling himself in two-strike counts. Lately, though, the changeup has been used with incredible effectiveness against him in those two-strike counts."
Full article: SB Nation