Retiring Novak Djokovic booed as Jannik Sinner and Ben Shelton bid for Australian Open final - live - Djokovic is out of the Australian Open after retiring from his semi-final, with Zverev through to ...

Novak Djokovic retires from Australian Open semi-final as Alexander Zverev advances - live - Djokovic is out of the ...

Tennis Focus, Hot Topics Alexander Zverev believes more respect should be given to Novak Djokovic who retired from their semi ...