Britain's Andy Murray began the defence of his Wimbledon title with a straight-set win over Kazakhstan's Alexander Bublik on Centre Court.
The Scot won 6-1 6-4 6-2, despite a hip injury which disrupted his build-up.
Murray, the world number one, hit 29 winners and maintained his form either side of a rain break in the third set to win in one hour and 44 minutes.
The 30-year-old will face Germany's Dustin Brown - the man who beat Rafael Nadal in 2015 - in round two.
Murray is trying to match fellow Briton Fred Perry as a three-time singles champion and claim his fourth Grand Slam title.