South African seventh seed Kevin Anderson fired 19 aces in advancing to the second round at the $1.375 million ATP and WTA Memphis Open by beating Robby Ginepri 7-5, 6-3 on Wednesday.

Anderson ousted the US qualifier in 75 minutes to book a matchup with American wildcard Sam Querrey at the indoor hardcourt event.

The South African could face US top seed John Isner in the semi-finals.

On the women’s side, three seeded players were eliminated in second-round matches, leaving New Zealand’s fourth-seeded Marina Erakovic as the only seed in the quarter-finals.

Italy’s Alberta Brianti ousted Kazak second seed Ksenia Pervak 7-6 (7/3), 6-2 while Ukranian Lesia Tsurenko outlasted Czech third seed Lucie Hradecka 3-6, 6-4, 7-6 (7/3).

Swede Sofia Arvidsson downed French fifth seed Pauline Parmentier 7-6 (7/5), 0-6, 6-3.