Garbine Muguruza needed barely an hour in an early start at the Miami Masters as the Spaniard posted a 6-4, 6-1 thrashing of Chinese teenager Wang Xinyu for a 19th victory this season.
The 12th seed, a double Grand Slam winner, is working to surpass her career best here, where she has stalled in the fourth round on five previous occasions.
Muguruza, winner of the Dubai title at mid-month, broke the 19-year-old Wang five times and produced four aces against the WTA No. 150.
Muguruza will await a third-round opponent from Petra Martic and Anna Kalínskaya.
The match against an unknown opponent was a challenge to the experienced seed
“I was looking forward to playing, but I was also a bit nervous” she said. “I played well in the Middle east and wanted to keep the same energy and quality of tennis
“Against an unknown player, you never know what to expect. I’m happy i could get a win in a first tricky match.”
Muguruza said that playing the day’s first match came with it’s advantages.
“I like it, you know when you will start. You do have to wake up early but afterwards you have time to rest and think about something else.”
Elsewhere in early matches,Dubai semi-finalist Mertens, who lost in the Gulf to Muguruza, advanced over Brit Katie Boulter 6-4, 6-1 while 33rd-ranked Australian Open quarter-finalist Jessica Pegula put out Aussie Storm Sanders 6-3, 6-4.
Main photo:- Quick win for Garbine Muguruza who lifted Dubai trophy this month – by wtatennis.com