Novak Djokovic has accomplished the outstanding feat of registering 20 or more victories against six different opponents after his latest triumph over Gael Monfils.

Reilly Opelka delivered the upset of the week by defeating 24-time Grand Slam champion Novak Djokovic in the quarterfinals of the ATP 250 Brisbane International by 7-6(6), 6-3. The American had been ...

Opelka, who missed nearly two years due to injuries before returning to the elite circuit last year, broke for a 3-1 lead in ...