Murray looks to learn from Lendl's rags-to-riches story

Scot comfortable after breezing by Raonic to reach quarterfinals

Andy Murray believes coach Ivan Lendl's bittersweet relationship with the US Open could help him unlock the door to lifting his first Grand Slam title.

Murray reached his eighth successive quarterfinal at a major on Monday with a 6-4, 6-4, 6-2 win over big-serving Canadian Milos Raonic as he continued his campaign to end his record of four Grand Slam finals without a trophy.