Her hair glows in the dark so who knows ?
Bethanie Mattek - Sands is wearing Google Glass and it 's going to be interesting to see if she 's allowed to wear them during match play .
Bethanie Mattek - Sands ' hair glows in the dark so who knows ?
Bethanie Mattek - Sands is wearing Google Glass and it 's going to be interesting to see if she 's allowed to wear them during match play .