Venus prevails in opening Cincinnati match
Former world number one Venus Williams moved through the first round of the Cincinnati Masters when she defeated compatriot Lauren Davis in straight sets on Monday.
Wild card Williams won 7-5 6-2 on centre court as she maintained her streak of never having lost a set to Davis, having beaten her four times.
Williams fended off seven of the eight break points she faced, and won 61% of points when returning the Davis second serve.
"I was just trying to find the rhythm," Williams said afterwards. "She has a surprisingly powerful game. You look at her and you don't think she's gonna hit that hard, but she really knows how to control the point - has an impressive game."
Kazakhstan's Yulia Putintseva and Belarusian Aliaksandra Sasnovich earlier won three-set matches.
Putintseva defeated Jelena Ostapenko of Latvia 6-2 7-6(3) 6-3 and Sasnovich beat Astra Sharma of Australia 6-1 4-6 6-1.
Aryna Sabalenka had an easier task, beating Petra Martic 6-1 6-4.