Millman rallied to a 7 - 5 4 - 6 5 - 7 6 - 4 6 - 3 win over Spaniard Albert Montanes .
Gavrilova produced a spirited comeback to advance 2 - 6 6 - 3 6 - 4 over Wang Qiang .
Millman rallied to a 7 - 5 4 - 6 5 - 7 6 - 4 6 - 3 win over Spaniard Albert Montanes , while Gavrilova produced a spirited comeback to advance 2 - 6 6 - 3 6 - 4 over Wang Qiang .