Defending Australian Open champion Jannik Sinner made a commanding start to his Melbourne campaign on Tuesday, advancing to the second round after France's Hugo Gaston retired with the Italian leading 6-2, 6-1 in just over an hour at Rod Laver Arena.
Matteo Berrettini earned back-to-back ATP Tour titles when he defeated Hugo Gaston 7-5 6-3 in the Generali Open final in Kitzbuhel on Saturday.