Andreeva was never in trouble against Sierra, jumping out to a 3-0 lead after just 10 minutes and eventually closing it out after 50 minutes on court. She finished with more than twice as many points, 54 to 21, and fought off all four break points she faced.
“I was a little bit nervous before this match coming back as the defending champion at this amazing place,” she said afterwards. “Honestly I think I’m just a little bit more experienced to play with the wind here. The conditions are pretty tricky because the wind direction is changing all the time, and today I think I managed to adjust my game a little bit quicker to these conditions.”
She was then asked if she was aware of her 100-win milestone.
“Honestly, no,” she replied, "but I always see posts on Instagram, people post things like Novak got his 500th win on tour, and I was like, ‘I wonder when I’m going to get at least to 50!’ Now you’re telling me I’m getting my 100th win. It’s just amazing and super special to hear, and I hope I’m going to keep going.”
Awaiting the No. 8-seeded Andreeva in the third round will be either No. 27-seeded Leylah Fernandez or Katerina Siniakova.