Osaka stole the show at the Australian Open with a spectacular jellyfish-inspired design, but Becker had mixed views

Australian Open second round competition begins Wednesday with top-ranked Carlos Alcaraz and Aryna Sabalenka amongst the many stars in action. Here's our Day 4 live blog.

Naomi Osaka is serving eye-catching looks at the Australian Open. The world No. 17 turned heads on Tuesday, debuting a new look she told Vogue was inspired by her 2-year-old daughter Shai, whom she shares with former partner, rapper Cordae.

Osaka moves into the second round of the Australian Open for the ninth time in ten appearances, where she will face another stern test in Sorana Cirstea. The Romanian is in the opening stages of her farewell tour of tennis' sprawling calendar, and is an opponent capable of pulling off upsets against players of the highest calibre.

The Australian Open is now underway, with plenty of upsets having already taken place in Melbourne. On the ATP Tour, 20th seed Flavio Cobolli lost in the first round to Arthur Fery, who emerged through qualifying.

Amateur Jordan Smith arrived hoping to win a single point and left with A$1 million and bragging rights over Jannik Sinner after conquering the Australian Open’s Million Dollar One Point Slam. The bold format lets amateurs gamble everything on one point against elite players and celebrities.

Will Madison Keys defend her Australian Open title? That's one of the many storylines heading into the first Grand Slam of the calendar year.