Defending champion Rafael Nadal crushed Ryan Sweeting 6-3 6-2 6-4 to move swiftly into round three at Wimbledon.
The number one seed raced through the first two sets, with his groundstrokes proving far too powerful and precise.
Sweeting, the world number 69, managed to break Nadal to make it 2-2 in the third but the Spaniard reasserted his dominance and quickly sealed victory.
Eighth seed Andy Roddick also looked in impressive form as he brushed aside Victor Hanescu of Romania 6-4 6-3 6-4.
Nadal was in control throughout his match apart from a brief moment in the third set when he seemed to lose concentration and his American opponent, until then utterly outplayed, took his moment to break back in the fourth game - a fine drop shot sealing it.
Nadal suddenly looked out of sorts, especially on his backhand side, and needed to refocus. That he did with a faultless two-hander to move back ahead.
The world number one had to save another break point before seeing out his first match under the Centre Court roof.
"I played well. I had the match under control at 2-1, 40-0 in the third set but then made a few mistakes," said Nadal.
"This is the best court in the world. It's a pleasure always to play here.
"It was a new experience under the roof but I prefer to play with no roof, that's for sure."
Nadal's next opponent will be Gilles Muller, who advanced after big-serving Canadian Milos Raonic retired while leading 3-2 in the first set.
Elsewhere, Tomas Berdych, last year's runner-up, made short work of beating Frenchman Julien Benneteau, cruising to a 6-1 6-4 6-2 victory.
Mardy Fish, the 10th seed from the United States, also progressed in straight sets while a trio of Frenchmen, ninth seed Gael Monfils, 15th seed Gilles Simon and 17th seed Richard Gasquet, also advanced with impressive wins.
But 14th seed Stanislas Wawrinka from Switzerland was knocked out by unseeded Italian Simone Bolelli, losing 7-6 (7-5) 6-3 7-6 (7-4), and 21st seed Fernando Verdasco of Spain crashed to a 7-6 (7-3) 6-7 (3-7) 6-2 6-2 defeat at the hands of Dutchman Robin Haase.
Argentine Juan Martin del Potro will have to resume his match against Olivier Rochus on Thursday.
Rochus had taken the first set on a tie-break before play was stopped for failing light.