Nick Kyrgios has sparked outrage after making a controversial comment about his ex-girlfriend Anna Kalinskaya, who is now dating world No. 1 Jannik Sinner. In response to an old photo of himself with Kalinskaya, Kyrgios wrote 'second serve' on social media, which many interpreted as a jab at Sinner. This comment has led to calls for Kyrgios to be removed from his commentary position at ESPN, with critics accusing him of misogyny and disrespect towards women in tennis. Kyrgios defended his remark, stating he is not the bad guy and questioning what was abusive about his comment. Meanwhile, Sinner has faced scrutiny after testing positive for a banned substance, although he was cleared of wrongdoing by the International Tennis Integrity Unit. The feud between Kyrgios and Sinner continues to escalate, intensifying public backlash against Kyrgios's comments.