The most extraordinary of semi-finals ended with a piercing shriek of agony. Scrambling to his right to hit a forehand down the line, Alexander Zverev twisted his right ankle as he lunged for the ball. His racquet flew out of his hand on his way down. And he stayed down. In tears.
The combat was just over three hours old and far from finished. But Zverev, contorted in pain, wept in despair.