The Philadelphia Phillies' 18-year-old right-hander, Sixto Sanchez, has one of the best fastballs of any starter in the minors, perhaps the best, with his three pitches last Wednesday coming in at 99, 100 and 99 mph -- easy velocity with a little life to the pitch as well. He threw 62 pitches over six innings, 46 of them fastballs and six of those 100 or 101 mph. He thoroughly overpowered the Rome Braves' hitters twice through the order before they started to time his fastball more the third time through, showing the weakness of his secondary stuff and his present fastball command.