Wimbledon 's returning British hero Andy Murray began the defence of his historic title with a routine dismantling of his Belgian opponent David Goffin 6-1 6-4 7-5.
Back surgery, a split with coach Ivan Lendl and up-and-down form meant there were a few question marks over the third seed ahead of the biggest fortnight of his year, but he answered them with an emphatic victory.
Watched by his grandparents in the Royal Box, Murray dominated what he described as a match of very high standard, which he was pleased to end in three sets.
Australia's Samantha Stosur, the 17th seed, became the first big name casualty, losing in straight sets to Belgium's
Yanina Wickmayer, and the American 18th seed Sloane Stephens, a quarter-finalist last year, went out to the Russian Maria Kirilenko, also in straight sets.
The biggest casualty in the men's draw, Spain's 18th seed Fernando Verdasco, lost in four sets to the unseeded young Australian Marinko Matosevic.