Slovakia — Greece

Serbia — Lithuania

Argentina — Turkey

Molcan A — Sakellaridis S

Gombos N — Tsitsipas S

Kecmanovic M — Butvilas E

Virtanen O — Vacherot V

Knaff A — Marozsan F

Medjedovic H — Gaubas V

Van de Zandschulp B — Mejia N

Vasa E — Catarina L

Van Herck L — Piros Z

Ruud C — Cui Jie

Griekspoor T — Rodriguez Rodriguez J A

Cerundolo F — Erel Y

Rune H — Dimitrov G

Budkov Kjaer N — Te Rigele

Tirante T A — Alkaya M

Moller E — Radulov I

Fonseca J — Wawrinka S

Heide G — Stricker D

Buse I — Vallejo A D

Varillas J P — Escurra Isnardi H J

Shepp A — Shimabukuro S

Watt J — Sakamoto R