Sabr stunner: Roger Federer cuts down Stan Wawrinka with deadly new weapon to set up US Open final with Novak Djokovic

Roger Federer reached his first US Open final in six years on Friday, where will face world number one Novak Djokovic in the 42nd round of their heavyweight rivalry.

Five-time champion Federer, 34, bidding to become the oldest New York champion since 1970, swept past Swiss compatriot Stan Wawrinka 6-4, 6-3, 6-1

Djokovic, the 2011 champion, booked a place in the final for the sixth time with a record 6-0, 6-1, 6-2 rout of defending champion Marin Cilic in the most one-sided US Open semi-final of the modern era.

Sunday’s clash will be a rematch of July’s Wimbledon final, where Djokovic triumphed to claim his ninth career grand slam crown.

Federer, the holder of 17 majors but without a grand slam title since Wimbledon in 2012, will take a 21-20 career edge over Djokovic into the championship match, having won their last duel in Cincinnati in August.

The Swiss legend was imperious against Wawrinka and his victory means he has not dropped a set since the Wimbledon final, a perfect stretch of 28 sets, as he reached a seventh US Open final.

Federer used his aggressive new tactic, which he has nicknamed the “Sabr” (Sneak Attack By Roger), whereby he charges in to half volley his opponents second serve, to disrupt Wawrinka’s rhythm from early in the first set.