Federer has not beaten Djokovic at the Australian Open or the United States Open, the two Grand Slam events played on hardcourts, since 2009.
Federer, despite some brutal setbacks, has been the man to beat at Wimbledon, winning a record eight titles.
Rafael Nadal has been tops, and then some, at the French Open, winning a record 12 titles there.
He will be the favorite again on Sunday when he faces either Dominic Thiem or Alexander Zverev, neither of whom has won a Grand Slam singles title.
Djokovic recalled his own path to success against older players, like Federer, and players with more big-match experience, like Nadal.
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