(http://news.bbcimg.co.uk/media/images/58108000/jpg/_58108572_nadal_fererer_ap.jpg)
Rafael Nadal produced some scintillating tennis to come from one set down to beat Roger Federer and reach his second Australian Open final.
The world number two, who won the 2009 title, lost an opening set tie-break but hit back to take the next three and win 6-7 (5-7) 6-2 7-6 (7-5) 6-4.
Third seed Federer saved one match point on Nadal's serve but the Spaniard held his nerve to take it on the next.
Nadal will play either Andy Murray or Novak Djokovic in Sunday's final.
BBC