Aryna Sabalenka of Belarus returns a ball to Antonia Lottner of Germany during the Fed Cup World Group first round tennis match between Belarus and Germany in Minsk, Belarus on Sunday.

Aryna Sabalenka of Belarus returns a ball to Antonia Lottner of Germany during the Fed Cup World Group first round tennis match between Belarus and Germany in Minsk, Belarus, Sunday, Feb. 11, 2018. (AP Photo/Sergei Grits)