Sock began his season at the
2016 Hopman Cup, representing the USA alongside Serena Williams, who was ultimately replaced by Victoria Duval due to injury. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Sock and Duval recorded wins in the mixed doubles over Ukraine and the Czech Republic.<unk> Sock and Duval recorded wins in the mixed doubles over Ukraine and the Czech Republic. They did not proceed to the final.<unk> They did not proceed to the final.