Djokovic is a 10-time champion at the Australian Open and boasts a ridiculous 94-9 record at the tournament over his career. Alcaraz, on the other hand, is an extraordinary 16 years the junior of Djokovic and has spent significantly less time on court throughout the first four rounds. The Spaniard is striking the ball harder and with more aggression this fortnight in Melbourne than he was 12 months ago. Tournament data shows he has sacrificed around 4% of topspin on his forehand in exchange for more speed, and is now generating, on average, an extra 3 km/h (1.9 mph) on those shots.