Andy Murray was in complete control against an error-prone Grigor Dimitrov as he advanced to the quarter-finals of the US Open.
US Open champion in 2012, second-seeded Murray accounted for Dimitrov 6-1 6-2 6-2 in front of a subdued crowd at Arthur Ashe Stadium on Monday.
For most of the match, Dimitrov - the 22nd seed - looked sluggish and devoid of answers in a match lacking any real entertainment or drama against Murray, who will now face Kei Nishikori in the last eight.
As the sun went down in picturesque settings at Flushing Meadows, Murray and Dimitrov went toe-to-toe, but it only lasted three sets.
A double-fault from Dimitrov handed Murray a break point and the Olympic champion made the most of the opportunity after the latter fired an overhead smash into the net.
The impenetrable Murray - who lost in the fourth round of last year's grand slam - then held serve for a 4-1 lead, with Dimitrov's body language a cause for concern as the Bulgarian conceded the opening set with barely a whimper and a total of 13 unforced errors.
Murray continued where he left off in the second, breaking in the first game for an early lead, though an out-of-sorts Dimitrov did manage to get himself on the board, having broken back to trail 3-1.
But just as Dimitrov got the set on serve, it quickly went in the opposite direction, a double-fault gifting the break back to Murray, who took a two-sets-to-love lead and never looked back, dropping just two games in the third.
Murray  bt Dimitrov  6-1 6-2 6-2
Murray - 28/23
Dimitrov - 13/43
Murray - 9
Dimitrov - 2
BREAK POINTS WON
Murray - 7/11
Dimitrov - 1/6
FIRST SERVE PERCENTAGE
Murray - 53
Dimitrov - 62
PERCENTAGE OF POINTS WON ON FIRST/SECOND SERVE
Murray - 79/54
Dimitrov - 52/35
Murray - 94
Dimitrov - 61