As Andrew Heaney prepares to the take the mound tonight....

First 9 games: 56.5 percent fastballs, 5.24 ERA
Last 2 games: 74.2 percent fastballs, 1.38 ERA

Will he stick with that or get tricky since the A's have seen him so much?

— Jeff Fletcher (@JeffFletcherOCR) June 16, 2021