Novak Djokovic has retired from his Australian Open semifinal against Alexander Zverev after losing the first set in a tiebreak. Djokovic missed a regulation putaway volley on top of the net down 5-6,

Novak Djokovic’s quest for a record 25th grand slam title has been cut short at the Australian Open after he stunningly retired from his semifinal match due to a left leg injury.

Facing Sinner reminded Alexander Zverev of trying to solve the challenge presented by the 24-time major champion Djokovic.

Novak Djokovic remains one of the best tennis competitors today. At the age of 37, we have yet to see a decline in the Serbian star’s level of performance.

Novak Djokovic has reacted to the crowd at the Australian Open booing after he decided to retire from his semifinal against Alexander Zverev. The Serbian tennis player, 37, had taken to the court with his left leg heavily taped following Tuesday’s injury.

Novak Djokovic was booed off court after his Australian Open semi-final was cut short due to injury, and his Davis Cup captain issued a passionate defense.

Novak Djokovic has been defended by Serbia's Davis Cup captain as he called for an Australian broadcaster to be fired.

Andy Roddick has admitted he 'felt icky' after seeing Australian Open fans turn on Novak Djokovic at the recent tournament in Melbourne. Djokovic decided to withdraw from his semi-final clash against Alexander Zverev on Friday,

Serbian Davis Cup captain Viktor Troicki has demanded Channel Nine commentator Tony Jones be banned from covering tennis for life following controversial comments about Novak Djokovic at the Australian Open.