Edmund struggles to get in the groove on grass as Mannarino marches on
Kyle Edmund became the first British player to fall at Wimbledon after he endured a straight-sets defeat to France's Adrian Mannarino.
Edmund is considered a potential successor to Andy Murray's reign at the top of the men's game in this country but Mannarino was a comfortable victor on Court Two, winning 6-2 7-5 6-4.
The 21-year-old arrived at the All England Club in good form, pushing Murray to three sets at Queen's two weeks ago soon after beating then world number 18 Gilles Simon for the biggest victory, in ranking terms, of his career.
Grass, however, remains Edmund's least favourite surface and this is now the fourth consecutive year at Wimbledon he has lost in the first round.
"It's funny because my best result on paper is on grass," Edmund said.
"I feel more comfortable on other surfaces.
"It doesn't mean I can't play on this surface.
"I think it just means I've had less time on it."
Edmund's serve was particularly vulnerable, producing 10 double faults in total, and Mannarino capitalised with seven breaks.
After a shaky first set, the Briton grew into the match in the second and third but he made too many mistakes to establish any momentum.
Mannarino, a crafty left-hander known for his touch and variety, was an awkward first round draw but Edmund, ranked 68th in the world, was far from his free-flowing best.
"I thought I just played quite inconsistently today," Edmund said.
"With the way I was constructing points, I didn't put enough pressure on him. My serve was quite inconsistent. I served well in patches and in patches it went off."
Marin Cilic is in confident mood at Wimbledon after shaking off doubts about a first-round exit.
The former US Open winner was dumped out of the French at the first-round stage last month by Marco Trungelliti and the ninth seed was minded not to suffer a similar outcome in London. He avoided it with some ease, beating American Brian Baker 6-3 7-5 6-3 on Court 12.
"I'm feeling pretty confident at the moment," said Cilic, who sent down 18 aces en route to victory.
Germany's Philipp Kohlschreiber was the first seed to fall in the men's draw.
The 32-year-old fell in four sets to Frenchman Pierre-Hugues Herbert, the US Open doubles champion, 7-5 6-3 3-6 6-3.