Novak Djokovic took a moment to pay tribute to Simona Halep as the Serb hailed the Romanian's career as amazing after the 33-year-old walked away from pro tennis this week.

Several tennis greats paid tribute to Simona Halep after she brought the curtain down on her glittering career this week.

Simona Halep has received tributes from a host of her fellow tennis greats since she brought the curtain down on her ...