Melbourne, Jan. 24 -- Defending two-time champion Jannik Sinner continued his fine run at the ongoing Australian Open, surviving sweltering Aussie heat and cramps to make it to the fourth round with a win over Eliot Spizzirri on Saturday.

As per ATP's official website, Sinner beat Eliot in a fine comeback win from being one set down, by 4-6, 6-3, 6-4, 6-4 at Rod Laver Arena in a battle that lasted for three hours and 45 minutes.

With the match level at one set each, Eliot broke for a 3-1 lead in the third set as Sinner struggled with cramp pain, which hampered his ability to move and make serves. The play was suspended due to heat, and after a 10-minute break, Sinner regrouped and made a phenomenal comeback to make it to round four, tak...