Open gets serious

Nicolas Kiefer of Germany. Ryan Pierse / Getty Images

The Australian Open tennis tournament in Melbourne has reached the business end in both the men's and women's draws.

Sebastien Grosjean of France was playing German Nicolas Kiefer in the first men's quarter-final today.

Belgian Justine Henin-Hardenne and Maria Sharapova of Russia have already reached the women's semis.

ORDER OF PLAY

Day session, play started at 1pm NZT:
21-Nicolas Kiefer (Germany) v 25-Sebastien Grosjean (France)
3-Amelie Mauresmo (France) v 7-Patty Schnyder (Switzerland)
2-Kim Clijsters (Belgium) v Martina Hingis (Switzerland)

Night session, play starts 9.30pm NZT
1-Roger Federer (Switzerland) v 5-Nikolay Davydenko (Russia)