John Sickels posted his Top 20 Astros prospects today, with letter grades and write-ups. In the interest of driving traffic to his site, we'll only list the names and order, and let you click through.
1) Carlos Correa
2) George Springer
3) Mark Appel
4) Mike Foltynewicz
5) Lance McCullers, Jr.
6) Vince Velasquez
7) Domingo Santana
8) Michael Feliz
9) Jon Singleton
10) Rio Ruiz
11) Delino DeShields
12) Asher Wojciechowski
13) Max Stassi
14) Nick Tropeano
15) Josh Hader
16) Kyle Smith
17) Andrew Thurman
18) Danry Vazquez
19) Teoscar Hernandez
20) Nolan Fontana