Roger Federer has qualified for the semi-finals of the Barclays ATP World Tour Finals, with a perfect 3-0 round-robin record.
The second seeded ace thrashed fifth seed Andy Murray 6-0, 6-1 in 56 minutes to complete Group B play.
It was the 250th indoor match win of his career.
It was the joint worst tour-level loss of Murray’s career, including the time the Brit lost to Novak Djokovic 6-1, 6-0 in the 2007 Miami Open semi-finals.
Meanwhile, Japanese world number five Kei Nishikori qualified behind Federer, following his victory over Spaniard David Ferrer, who was a replacement for the injured Milos Raonic.
Nishikori won 4-6, 6-4, 6-1 in just under two hours.
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