Couple of bets that make sense to me...
Sloane Stephens +4.5 (2)
Pauline Parmentier -1.5 (1.9)
I actually think Stephens can outright win, so an additional single bet on Stephens might not be a bad idea...
Combined odds: 3.8:1
Stephens : Wozniak over 19.5 (1.85)
Sofia Arvidsson -1.5 (1.9)
Combined odds: 3.5
Pauline Parmentier -1.5 (1.9)
Sofia Arvidsson -1.5 (1.9)
Combined odds: 3.6