Coco Gauff and Aryna Sabalenka to meet for US Open title after semi-final wins – as it happened

• Sabalenka rallies from brink for 0-6, 7-6, 7-6 win over Keys
• Gauff beats Muchova 6-4, 7-5 to reach first US Open final
• Protesters interrupt play for 50 minutes during second set

Muchova breaks in seventh game of first set!

First set: Gauff 5-2 Muchova* (*denotes next server)