Emma Raducanu and Eugenie Bouchard react as Alex de Minaur fiance Katie Boulter steals spotlight at Australian Open

Alex de Minaur did the winning on court, but off the court, it was his fiancée Katie Boulter who stole the spotlight at the 2026 Australian Open. After Alex de Minaur beat Frances Tiafoe in straight sets in the third round in Melbourne, fans were not just talking about his tennis. They were also talking about a glamorous photo shared by his fiancée, British tennis player Katie Boulter. She attended the match looking stylish and confident, and the photo quickly caught attention across the tennis world.What made it bigger was the reaction from famous players. Emma Raducanu, Eugenie Bouchard, and Marta Kostyuk all noticed the post and shared their love in the comments. One comment, in particular, went viral and sparked wide talk online. It compared Boulter’s look to Kate Middleton, the Princess of Wales. The moment mixed tennis, fashion, and personality, making it one of the most talked-about off-court moments of the Australian Open so far.

Emma Raducanu, Eugenie Bouchard, and Marta Kostyuk react to Katie Boulter’s Australian Open look

On Saturday, January 24, a day after Alex de Minaur’s third-round win over Frances Tiafoe, Katie Boulter shared a photo on Instagram from the Australian Open. The 29-year-old British player looked elegant and relaxed as she supported her fiancé from the stands.Katie Boulter added a fun caption to the post. She wrote, “51% shareholder 😏.” The line was a playful response to former tennis star Jim Courier. Courier had joked that de Minaur would become a “49% shareholder” in their marriage during on-court talk after the match.The post quickly drew comments from top names in women’s tennis. Retired Canadian player Eugenie Bouchard left the most talked-about reaction. She wrote, “Kate Middleton vibes.” The comment compared Boulter’s look to Catherine, Princess of Wales, and fans loved it.Emma Raducanu also reacted with a heart-eyes emoji, “😍.” Ukrainian player Marta Kostyuk followed with a warm message, writing, “Beautiful 😍🥰.” Their responses helped push the moment across social media.Later, Alex de Minaur spoke about wedding planning after the match. He said, “Honestly, the fact that we’re both tennis players and we’ve both got quite a busy schedule helps. We are doing as much as we can together.” He added, “I’m sure when it comes to the details of napkins and flowers and decoration purposes, that’s not my forte. I’ll leave that to Katie.”On court, Alex de Minaur kept moving forward. He beat Alexander Bublik in the fourth round to reach the quarterfinals. His next match will be tough, as he is set to face Carlos Alcaraz. De Minaur has lost all five of his past matches against the Spanish star.