Former world number one Naomi Osaka was brought to tears by a heckler during her 6-0 6-4 defeat by Veronika Kudermetova at Indian Wells.
The four-time Grand Slam winner was taunted in the first set by someone in the crowd yelling "Naomi, you suck".
Osaka was playing her third event since taking a break in September.
Speaking on court after the match, an emotional Osaka said it reminded her of Venus and Serena Williams being heckled at the same tournament in 2001.
While holding back tears, Japan's Osaka said: "I've been heckled before and it didn't really bother me.