After spending 50 minutes on court for her first match, Serena Williams took 1hr 01min to get rid of Caroline Garcia.
The French took three sets to World No. 1 who finally obtrudes 6/1, 6/2.
Serena improves her personal record of invincibility that is now 26 consecutive wins.
In the third round the American will cross the racket against the Romanian Sorana Cristea.