It's actually not as laughable as I would have thought, although it is most definitely wrong. When you take their primary fastball type (which is what they SHOULD be throwing most of), it's 97 wRC+ for Syndergaard and 104 for Sanchez. Sanchez HAS actually given up a lower wRC+ for the curveball in his career (34 to 63). Their changeups are identical. The difference is really Sanchez having to throw the four seamer more because of his finger issues (which has been terrible), and Syndergaard having a very good slider. I mean, it's a very important difference, but it's also pretty interesting comparing them if you look deeper into the numbers.