Federer goes through to semi-finals; faces Mathieu

Austrian Melzer, making his debut in Valencia and chasing a fourth career title, saw off promising Belgian David Goffin, 10 years his junior, 7-6, 6-4.

Next week’s Paris Masters will be the final chance for the remaining hopefuls to seal their spot at the Nov. 5 to Nov. 12 Tour Finals in London.