The 30-year-old New Zealander owned 8 doubles titles as well.
The 14-year-old American may have played her last junior tennis match.
Hall of Famer chooses coaching Lucas Pouille over Davis Cup.
The 2008 Oz Open runner-up will return to Melbourne.
Serena is the ultimate fighter on court, but not exactly Laila Ali in the ring.
A final-set tiebreak, with a super twist, may be coming soon to Melbourne.
The Swiss is still 19 weeks behind Agassi for all-time Top 100 weeks.
