#1 His name is Josh Hader. #2 His fastball has been 92-94 mph this year. #3 He is barely 19 years old, 6'3" and 160 lbs, thus it is very likely he will add another few mph to his fastball.
Lot of reports out there that Hader sits 90-91 now and touches 93-94. Apparently he's had a nice velocity boost since high school. Throws from 3/4 arm slot, hides ball well, is athletic and projectable. It sounds like the determining factor for him will be how well he develops his slider/change, since his CB is decent but the other two are lacking. Really nice project.