Jannik Sinner made a dramatic comeback at the Australian Open, overcoming cramps and getting benefit from the tournament's extreme heat policy to beat Eliot Spizzirri.

Alexander Zverev has saved two match points to overcame Daniil Medvedev 2-6, 6-3, 7-6 and keep alive his Paris Masters title defense.

Valentin Vacherot beat his cousin Arthur Rinderknech 4-6, 6-3, 6-3 to win the Shanghai Masters for the first title of his career after a stunning run from the qualifying rounds.

Two cousins will meet in the final of the Shanghai Open after qualifier Valentin Vacherot stunned a hobbled Novak Djokovic and relative Arthur Rinderknech fought back to beat Daniil Medvedev.

Novak Djokovic had a relatively straightforward victory at the Shanghai Masters for a change as he beat unseeded Zizou Bergs 6-3, 7-5 to reach the semifinals.