The quarterfinals begin – with everyone in the lineup a surprise on paper except No. 2 seed Alexander Zverev on the men’s side, and No. 8 Mirra Andreeva on the women’s side.
On the men’s side, Zverev is decidedly the veteran of the group because Fonseca and Jodar are 19, and Mensik just 20.
On the women’s side, 19-year-old Andreeva is the only ...