Wawrinka, Federer start out with winning Swiss double

The grand slam champion pair of Roger Federer and Stan Wawrinka lined up a Swiss victory doubles on Tuesday at the Wimbledon Championships with the two top five seeds advancing to the second round in spectacular style.

Fourth seed Federer, bidding for the 18th grand slam title of his career, crushed Italian Paolo Lorenzi 6-1, 6-1, 6-3, aceing nine times with 40 winners and half as many unforced errors.

Australian Open champion Wawrinka, seeded fifth, was untroubled by Portugal's Joao Sousa 6-3, 6-4, 6-3 as the Swiss won his first match at Wimbledon since 2011 after back-to-back first-round defeats on the lawns.

"I'm really happy, today was a good match," said the 29-year-old, who is ranked third in the world. "It's never easy a first round in a grand slam.

"But I was quite focused, serving well, and confident with my game. I've been practising well since two weeks now, since before Queen's, so it's a perfect start."

After his victory, Wawrinka believes he is getting the hang of the grass-court challenge. "It's a surface that if you not completely confident and relaxed with your game, you have some problem.             "That's why I had problems in the past. In the first round you can be a little bit tight, a little bit nervous. On this surface, it's really tough to get through.

"You have to be ready from the first match, it's really tough. You have to play your best game when you play some good players on grass."

Japan's 10th seed Kei Nishikori began his campaign with a victory over Kenny De Schepper, beating the Frenchman 6-4, 7-6 (7-5), 7-5 while French 14th seed Jo-Wilfried Tsonga fired off four straight points to finish off a rain-hit win over Austrian Jurgen Melzer 6-1, 3-6, 3-6, 6-2, 6-4.

2013 semi-finalist Jerzy Janowicz, whose game went nowhere after his Wiimbledon success, recovered his poise for a first-round win against Somdev Devvarman 4-6, 6-3, 6-3, 3-6, 6-3.

Former champion Lleyton Hewitt, still a huge battler at age 33, got past Pole Michel Przysiezny 6-2, 6-7 (14-16), 6-1, 6-4. Young-gun fellow Aussie Nick Kyrgios outlasted Stephane Robert 7-6 (7-2), 7-6 (7-1), 6-7 (5-7), 6-2.

In the women's draw, fourth seed Agnieszka Radwanska reached the second round over Andreea Mitu 6-2, 6-1 while the 16th-seeded Caroline Wozniacki hammered Shahar Peer 6-3, 6-0.

German Andrea Petkovic put aside her distaste for grass to beat Katarzyna Piter of Poland 6-1, 6-4.

"I think I've improved a lot and I really tried a few things. I actually played serve and volley once today, or twice maybe. I'm not sure.             "I'm just trying, with a more positive attitude to improve things.  And I'm feeling good actually on grass. I am moving much better than the past years, so we'll see. It's never going to be my favourite surface, but I'm trying to adapt as good as I can and trying to do the best that I can."

German compatriot Sabine Lisicki, the 2013 finalist, began with a defeat of Julia Glushko 6-2, 6-1  in a match preceded by a coin toss featuring retired holder Marion Bartoli, still in the thick of the tennis mix despite not swinging a racquet.

Swiss Timea Bacsinszky put out Canadian Sharon Fichman 6-1, 6-3.