A memorable moment unfolded at the 2025 Canadian Open when Ukrainian tennis star Marta Kostyuk concluded her third-round match against Daria Kasatkina with an unexpected handshake at the net, a gesture that immediately captured the attention of fans and commentators alike.

For several seasons, Kostyuk had maintained a personal protocol regarding post-match interactions, choosing to forgo the traditional handshake with certain opponents. This individual decision had become a notable aspect of her presence on the tour, often sparking discussion when she competed against specific players.

The sight of Kostyuk and Kasatkina exchanging a handshake therefore prompted considerable surprise, as it deviated from Kostyuk’s established approach. Many observers were curious about the reason behind this significant shift in her post-match conduct.

Daria Kasatkina, originally from Russia, had recently made a significant personal decision, formally changing her athletic nationality and now representing Australia. This change was a notable development in her career and contributed to the evolving dynamic between the two players.

When questioned about the interaction during her post-match press conference, Kostyuk provided a clear explanation. She acknowledged Kasatkina’s principled stance on global issues and her courageous decision to renounce her previous athletic citizenship, which factored into Kostyuk’s willingness to extend her hand.

Kostyuk articulated her belief in fairness and respect, emphasizing that these principles should extend beyond the court. She clarified that while her previous stance was a personal conviction, recognizing someone who “speaks the truth” and acts accordingly, like Kasatkina, warranted a different response.

She expressed hope that Kasatkina’s actions were not merely a singular event but part of a deeper, ongoing commitment to her convictions. This acknowledgment highlighted a nuanced approach to athlete interactions on the professional tennis circuit.

In the match itself, Kostyuk emerged victorious after a hard-fought battle, defeating Kasatkina 3-6, 6-3, 7-6(4) to secure her place in the round of 16. She is set to face McCartney Kessler in the next round, who advanced after stunning Mirra Andreeva.