Greece’s Maria Sakkari, returning to action for the first time since her French Open semi-final defeat, powered past Aranxta Rus of the Netherlands 6-1 6-1 in 49 minutes.
In other games
Former world number one Karolina Pliskova began her quest for a maiden Grand Slam title with a 7-5 6-4 victory over Slovenia’s Tamara Zidansek.
Ons Jabeur beats Peterson
Czech eighth Pliskova seed was joined in the second round by Ons Jabeur, who beat Rebecca Peterson 6-2 6-1.