Andy Murray records biggest win of comeback so far after downing David Goffin at Shenzhen Open

Goffin entered the tournament as the No 1 seed and reigning champion but the Belgian, ranked 11th in the world, was dispatched in straight sets by Murray

Andy Murray produced the most impressive win of his comeback from a hip problem by defeating David Goffin 6-3 6-4 to reach the quarter-finals of the Shenzhen Open.

Goffin entered the tournament as the No 1 seed and reigning champion but the Belgian, ranked 11th in the world, was dispatched in straight sets at an event Murray won four years ago.

It is the penultimate competition of the year for Murray, who has decided to play in the Shenzhen and China Opens before ending his season in order to work on improving the hip issue that has troubled his recent career.

There was little sign of discomfort as the world number 311 easily took the first set before surviving a late wobble in the second to close out a victory against a player to whom he had never lost in five previous meetings.

Murray gained an early foothold in the opening set when he broke Goffin in the fourth game and to underline his impressive form he took the next game easily.

Four aces strengthened Murray's challenge, but his poise deserted him in the seventh when Goffin broke back by dispatching the second serve at the crucial moment.

But regaining composure, the 31-year-old Scot immediately broke back before sealing the set at the second time of asking with another ace.

The one-way traffic continued into the second set as Murray raced 2-0 ahead, continuing to do considerable damage with his first serve.

Leading 5-1, however, he suffered a collapse that saw Goffin pull back to 5-4 and having saved three break points in the 10th, he served out for victory.