What did Nick Kyrgios say to Lleyton Hewitt's son Cruz? All you need to know about the Aussie's actions that have sparked controversy ahead of Australian Open 2025

Nick Kyrgios recently reacted to Lleyton Hewitt's son Cruz training with Jannik Sinner with a series of comments that have stirred controversy. The Aussie has often taken digs at Sinner ever since news of the Italian's doping saga emerged.

Before the US Open, it was claimed that Jannik Sinner tested positive for the banned substance Clostebol during the Indian Wells Masters in 2024. However, the International Tennis Integrity Agency ruled that the World No. 1 bore no fault or negligence of his own. Eventually, Sinner only had to forfeit his prize money and ranking points from the Masters 1000 tournament.

Ever since then, Nick Kyrgios has often been taking digs at the Italian. Most recently, the Aussie reacted to a picture that Cruz Hewitt shared on Instagram. The 16-year-old, who is the son of former World No. 1 Lleyton Hewitt, shared an image of himself with Jannik Sinner after a training session of the two.

Kyrgios reacted to this with a series of comments, one of which included a series of broken heart emojis.

"Love ya Cruz but this is wild"

"Cooked post 💉"

"Thought we were boys 💔💔💔💔💔💔💔💔💔 "

Nick Kyrgios' comments on Cruz Hewitt's Instagram post (Image Source: Instagram)

Several fans reacted to the Aussie's antics, with one calling it pathetic.

"It’s pretty pathetic. Maybe we should call it out, but ultimately attention is what that man wants and I don’t feel like I want to give him anymore," the fan said.

Another fan slammed Kyrgios for "targeting a minor", calling his behavior "obsessive" and "hateful".

"Absolutely. It’s beyond the pale. Obsessive, hateful behaviour now targeting a minor. The Australian Tennis Federation or whatever it’s called needs to censure him seriously," the fan said.

Another fan called Kyrgios' comments "an act of bullying".

"It’s disgraceful that Nick Kyrgios, a professional who can’t make headlines on the court, resorts to social media attacks against a 16-year-old boy. His evident obsession with Sinner makes it even more pathetic. These acts of bullying are unacceptable and trample on the core values of tennis. The @atptour must act immediately to stop this behavior and protect young talents!

Nick Kyrgios made his return to tennis at the Brisbane International

Nick Kyrgios in action at the Brisbane International (Image Source: Getty)

Kyrgios made his return to professional tennis at the Brisbane International, which was his very first tournament since June 2023. The Aussie faced Giovanni Mpetschi Perricard in the opening round, and the two played out a thrilling encounter, which was won 7-6(2), 6-7(4), 7-6(3) by the Frenchman.

He also competed in the men's doubles tournament alongside Novak Djokovic, and the duo reached the second round after beating the Austrian-German pair of Alexander Erler and Andras Mies 6-4, 6-7(4) [10-8]. Here, they lost 2-6, 6-3 [8-10] to top seeds Michael Venus and Nikola Mektic.

Kyrgios is next scheduled to compete at the Australian Open, which would be his first appearance at the Melbourne Major since 2022, when he won the men's doubles title alongside Thanasi Kokkinakis.