The similarities are pretty striking. Dexter Fowler and Jason Heyward are both 6-foot-5 outfielders. They went to high schools about 70 miles from each other; they met when Fowler was 18 and Heyward 15. They shared the same trainer then. "Dex," the trainer said to Fowler one day according to ESPN. "Wait around a little bit. I got your twin coming in." H…