Canada's Bianca Andreescu beat No. 7 seed Martina Trevisan of Italy 6-3, 6-1 on Tuesday in the opening round of the Bad Homburg Open in Germany.
Andreescu is now 2-0 against Trevisan, having also beaten her in 2017.
The Canadian will next face world No. 223 Katie Swan of Great Britain, who upset Sloane Stephens.
The Bad Homburg Open is a grass-court tune-up for Wimbledon, which starts next week.
Andreescu returned to tennis in April after taking more than six months off.