Carlos Alcaraz beats Frances Tiafoe: US Open tennis semi-final – as it happened

• Spanish teenager beats American hope in five thrilling sets
• Ruud books final spot with battling win over Khachanov
• Salisbury and Ram make history with doubles triumph

Alcaraz 1-1 Tiafoe* (* - denotes next server)

Alcaraz is hitting deep in these rallies. Too deep. Twice. 15-30.