Kastorpil might be the player with the least amount of upside from this group. He's big, athletic and unlike most European big men, is very strong and already has an NBA body. Because of his physical abilities, he's a good rebounder and a very solid defender. His offensive game is rather limited, and most of his points come from offensive rebounds. Also, he might be one of worst FT shooters on the planet. Kastropil needs to develop a better back-to-the-basket game in order to make the jump to the NBA. He's a 2nd rounder for now and has potential to become a solid backup center in the NBA.