Alex de Minaur accepts that he’ll be a "49% shareholder" in marriage to Katie Boulter

When Alex de Minaur was asked by Jim Courier about his involvement in wedding planning with fellow tennis player Katie Boulter following a third-round win at the Australian Open Saturday, the 26-year-old responded, “Are you doubting me, Jim?”

“I am,” confirmed the four-time major winner.

“No, this is like a 50/50 relationship right," continued De Minaur before being stopped by the master of on-court interviews.

“You've not been married. You don't know,” stated Courier. “You're about to become a 49% shareholder of a really great company.”

Two days later, De Minaur has seemingly accepted that reality.

The Australian No. 1 delivered another stellar performance Monday evening inside Rod Laver Arena, dispatching fellow Top 10 competitor Alexander Bublik with a 6-4, 6-1, 6-1 victory. Afterwards, De Minaur had a short but clear message to sign on the camera lens.

“49%,” it read.

Boulter, for her part, had published “51% shareholder” on her X account the day prior in co-signing Courier's warning.

De Minaur did not face a break point against Bublik, while impressively taking 51 percent of his return points. The Sydney native had lost their two most recent meetings from winning positions, including the second round of 2025 Roland Garros with a two-set lead.

He won 14 of the final 16 games to ensure there was no chance of Bublik turning this encounter “sideways.”

“Of course going into this one, I kind of wanted my revenge. I knew what to expect and what I didn't do right the first couple times,” he told press.

De Minaur is through to his seventh career major quarterfinal, though is yet to advance past that stage. If he is to end that dry spell, it will require the world No. 6 to overturn his 0-5 head-to-head against top seed Carlos Alcaraz.

“It does help out that I'm feeling quite fresh. It's going to be a physical battle, right, because there are many, many things that Carlos does incredibly well on a tennis court, and one is making the rallies quite physical,” said De Minaur.

“I'm going to go after the match. I'm excited for the battle. Yeah, ultimately it's something that I have never done, but, you know, there is always a first time for everything. I'm hoping that will be on Tuesday.”