Johanna Konta celebrates her victory over Venus Williams. Photo Reuters
The seven-time grand slam champion was named WTA comeback player of the year in 2015 when she won three titles to move back into the top 10 in the rankings but her hopes of going one better than her final appearance in 2003 were soon dashed.
The eighth-seeded American struggled to get a foothold in the match against her Australia-born opponent in the heat of Rod Laver Arena on Tuesday, however, and crashed out in 79 minutes.
Williams showed glimpses of her best tennis to rally from 5-0 to 5-2 in the second set but it only delayed the inevitable and 24-year-old Konta secured the upset when the former world number one netted a return.
