Novak Djokovic has retired from his Australian Open semi-final against Alexander Zverev after struggling with injury.The 37-year-old lost the first set on a tiebreak to second seed Zverev and ...
Novak Djokovic is benefitting from Andy Murray's energy and will look to use that against Alexander Zverev in the Australian Open semi-final as he battles an unknown injury, according to an Aussie ...