Christina McHale, a 19-year-old New Jersey native who lost to No. 13 seed Jelena Jankovic in the Australian Open's third round Friday, says she has never spoken to Serena.
Neither has Jamie Hampton, a 22-year-old qualifier who lost to Maria Sharapova in the second round Thursday.
Not that they wouldn't welcome the counsel of Serena and her older sister, Venus Williams, who have won a combined 20 Grand Slam singles titles since 1999.
"I personally would love it," Hampton said. "Any advice you can get from arguably the greatest players of all time — who wouldn't want that?"