The 36-year-old Williams looked far from full fitness just four months after the birth of her first child and Ostapenko, a 20-year-old Lithuanian, won 6-2, 3-6, 10/5. The former world No.1 is hoping to defend her Australian Open title when the tournament gets underway January 15.
She's back ? Catch @SerenaWilliams in her first match of 2018 at @MubadalaTennis against French Open champ Jelena Ostapenko. Saturday 8am ET on Tennis Channel???? https://t.co/CKNOFPsDdP pic.twitter.com/EoP2bbZocADecember 29, 2017