If it seems as if there's always something going on with Novak Djokovic at Grand Slam tournaments, that's because there usually is. Even Djokovic himself acknowledged as much as he prepared to face Alexander Zverev in the Australian Open semifinals Friday after taking painkillers for a hurt left leg.

In a matchup more appropriate for a final, 10-time Australian Open champion Novak Djokovic prevails in four sets over reigning Wimbledon champ.

Novak Djokovic has made winning against the odds become routine. The Serb found a a way to frustrate the life out of Carlos Alcaraz in the quarterfinals at Melbourne.