This is wild – Francis Tiafoe beats Andrey Rublev to reach semi-finals

Frances Tiafoe celebrates his win over Andrey Rublev (Mary Altaffer/AP)

Frances Tiafoe followed up his victory over Rafael Nadal by beating Andrey Rublev to become the first American man to reach the US Open semi-finals for 16 years.

Not since Andy Roddick in 2006 has a home player reached the last four in the men’s singles, and Tiafoe is attempting to become the first home champion since Roddick won his only slam title in 2003.