"The match was very difficult, but I never give up," said Krejcikova, also a wild-card entrant who is ranked No. 13 in the world. "Danielle played really well in the first set, but after that, I was improving with every single point, so I went for it."
After Collins controlled the first set, Krejcikova, 27, turned things around to knot the second set at five games apiece. Keeping her composure, Krejcikova then broke Collins' serve and held her own to tie the match.
Taking advantage of Collins' sudden struggle of unforced errors, Krejcikova, the 2021 French Open winner, eased to the win over the 2022 Australian Open finalist.
The Cymbiotika San Diego Open is a WTA 500 event with a total purse of $780,637, including $120,150 and 500 points in the WTA rankings for the singles champion.