By Daily Sports on January 30, 2020
Djokovic, 32, and Switzerland's Federer meet for the 50th time in Thursday's Australian Open semi-final.
Federer, 38, has not beaten Djokovic at a Grand Slam since 2012.
"Sometimes you think why the heck do you want to learn more? That's why they – and Rafael Nadal – are the best," Ivanisevic told BBC Radio 5 Live.
Defending champion Djokovic is going for a record-extending eighth title at Melbourne Park, while Federer is aiming to match his opponent's current tally with a seventh victory.
Djokovic, ranked second in the world, won their most recent meeting at a Grand Slam in an enthralling Wimbledon final last July, which concluded with that historic final-set tie-break.
World number three Federer, however, did beat him over three sets at the ATP Finals in November.
The other interesting sub-plot to their Melbourne semi-final is the continuing race between the pair – and Spain's Nadal – to finish with the most Grand Slam titles.
Federer leads the way with 20 majors, one ahead of current French Open and US Open champion Nadal and four clear of Djokovic, who won the Australian Open and Wimbledon last year. (BBC)
•PHOTO: Federer and Djokovic
Source Daily Sports
Posted January 30, 2020
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