BAD HOMBURG, Germany (AP) — Top-seeded Petra Kvitova had to dig deep to reach the second round of the Bad Homburg Open in beating Polish qualifier Katarzyna Piter 4-6, 6-1, 6-4 on Monday.
Kvitova lost serve three times but hit 10 aces while prevailing against 135th-ranked Piter in just under two hours at the Wimbledon warmup.