Blockx Retires, Khachanov Advances | Pro Tennis News

Alexander Blockx’s Grand Slam dream crumbled at the US Open as he retired from his quarterfinal clash against unseeded Karen Khachanov due to a persistent rib injury—he’d already battled through pain to reach this stage, even taking medical timeouts. Khachanov, now in his second US Open semifinal and third Grand Slam semifinal overall, expressed mixed emotions: empathy for his fallen rival, but thrilled to advance. He’ll next face the winner of Zverev vs. Van De Zandschulp, while Blockx’s inspiring run ends prematurely—his best-ever Slam performance cut short by physical limits.

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