Goffin stuns Federer to set up London final against Dimitrov

Tennis - ATP World Tour Finals - The O2 Arena, London, Britain - November 18, 2017 Belgium's David Goffin celebrates after winning his semi final match against Switzerland's Roger Federer Action Images via Reuters/Tony O'Brien

LONDON (Reuters) - As if clocking up a first victory over Rafael Nadal was not enough, David Goffin continued breaking new ground by stunning Roger Federer at the ATP Finals on Saturday to claim the biggest win of his career and reach the final.

Few gave the willowy world number eight a prayer against the Swiss maestro who had glided through his three round-robin matches unbeaten for the 10th time.