8. Phoenix Mercury Maria Vadeeva, 6’3 C Russia
Plenty of unknown surrounds the 20-year-old Vadeeva, a Russian big widely considered a project. But Brittney Griner allows for Vadeeva to come along slowly, even pair with Griner in a twin towers lineup. Meanwhile, Vadeeva is getting plenty of experience with future WNBA opponents in FIBA play right now.